My seven-year-old asked me why the sky is blue while I was trying to get spaghetti sauce out of a toddler's hair. I opened my mouth to explain Rayleigh scattering — something I half-remembered from a YouTube video I watched at 2am three years ago — and then I stopped.
"I don't know," I said. "Let's look it up together."
The look on his face wasn't disappointment. It was relief. Like he'd just discovered his dad wasn't a walking encyclopedia and that was somehow better than the alternative.
That moment rewired something in my brain. For the first two years of fatherhood, I treated every question like a test I couldn't fail. My kid asks about dinosaurs? I'm suddenly a paleontologist. Why do boats float? I'm Archimedes in a stained hoodie. Where do babies come from? I'm stammering through a biology lecture while my wife hides behind the refrigerator door laughing.
I was running a con on my own children. And I was exhausted.
The Dad BS Reflex Is Real
Every dad knows the moment. Your kid looks up at you with those eyes — the ones that assume you know literally everything about the universe — and asks a question you have no business answering. The pressure hits your chest like a small anvil. Your brain scrambles through its archives: half-remembered school lessons, podcast fragments, something your own dad once said that might have been completely made up.
And then you do it. You cobble together an answer from scraps and hope. You sound confident. You use words like "actually" and "the thing is" to buy yourself processing time. You're building a bridge out of toothpicks while your kid watches, and you're praying they don't step on it too hard.
I did this for years. Three kids, thousands of questions, and I'd estimate roughly 40% of my answers were vibes-based speculation dressed up as paternal wisdom. The other 60% were things I'd Googled at 3am while holding a bottle and immediately forgotten 80% of.
Here's what I eventually realized: my kids didn't need me to be Google. They needed me to be a co-investigator.
What 'I Don't Know' Actually Teaches Your Kids
When you admit you don't know something, you're not failing. You're modeling the single most important intellectual skill a human can have: the ability to recognize the limits of your own knowledge and then do something about it.
Think about what your kid learns when you say "I don't know, let's find out":
- Nobody knows everything. Not even Dad. Not even the guy who can fix the sink, grill a steak, and carry three grocery bags in one trip from the car. Knowledge has limits, and that's normal.
- Not knowing isn't shameful. You're not embarrassed. You're not defensive. You're just... curious. That's a radical lesson for a kid growing up in a world where everyone pretends to have all the answers on social media.
- Finding out is the fun part. The question becomes a project. A shared mission. You and your kid, side by side, figuring something out together. That's bonding. That's actual parenting.
- You can trust Dad to tell the truth. If you'll admit you don't know about the sky, you'll also tell the truth about harder stuff. The foundation of trust between you and your kid gets reinforced every time you choose honesty over performance.
The Cultural Weight of Knowing Everything
I'm Mexican-American. In my family, the dad is supposed to have the answers. My own father — a man I love and respect deeply — would rather invent a plausible-sounding explanation for literally anything than say "no sé." I grew up believing that dads were supposed to be walking authorities on all subjects, from car repair to astronomy to why the neighbor's dog won't stop barking at 6am.
Breaking that pattern felt like betrayal at first. Like I was letting down some ancient paternal lineage of confident bullshitting. But here's what I found: my kids trust me more now, not less. They ask more questions, not fewer. Because they know they're going to get either a real answer or a real admission of ignorance followed by a real investigation. There's no guessing game. No "is Dad making this up?" filter running in their heads.
My father-in-law — a man who has literally never said "I don't know" in the 15 years I've known him — once watched me tell my son I had no idea how microwave ovens actually work. He looked at me like I'd just announced I was joining a cult. But then my son and I spent 20 minutes watching an animated explainer video together, and by the end, my kid could explain magnetrons to his abuelo. The old man was quietly impressed. He didn't say it. But I saw the look.
How to Say 'I Don't Know' the Right Way
There's a wrong way to do this. If you just say "I don't know" and walk away, you've shut down the conversation. That's not the move. The magic is in the second sentence.
The Three-Step 'I Don't Know' Formula
- Admit it plainly. "I don't know." No hedging. No "well, it's complicated." Just the truth, delivered calmly.
- Add curiosity. "But that's a great question." Validate the ask. Make it clear the question is worth answering, even if you personally don't have the answer loaded and ready.
- Propose a mission. "Let's find out together." This is the critical piece. You're not abandoning them to Google. You're inviting them on an expedition.
That third step is everything. It transforms "I don't know" from a dead end into a door. Your kid goes from feeling like they stumped you to feeling like they just launched a joint research project with their favorite person.
Some real examples from my house:
- "Dad, why do we have eyebrows?" → "I actually don't know. That's a weirdly good question. Let's look it up." (Answer: they keep sweat and rain out of your eyes. We both learned that.)
- "Dad, what's inside a black hole?" → "Nobody really knows for sure, buddy. Even scientists are guessing. Want to watch a video about the theories?" (We went down a 45-minute physics rabbit hole. He's now obsessed with space.)
- "Dad, why is grandma mad at you?" → "That's... a different kind of question. I don't fully know either, honestly. Sometimes adults have complicated feelings. Let's talk about it." (Not every question gets a YouTube video. Some get a conversation.)
When You Actually Do Know (But Shouldn't Say)
There's a flip side to this. Sometimes you do know the answer, but jumping in with it robs your kid of the chance to figure it out themselves. My five-year-old asked me how many Legos it would take to build a tower as tall as our house. I could have done the math. Instead I said, "I don't know — how would we figure that out?"
Twenty minutes later we had a tape measure, a single Lego brick, and a piece of paper covered in very questionable arithmetic. The answer was wrong. The process was perfect. He still talks about that tower project.
Sometimes "I don't know" is a strategic choice, not an admission of ignorance. It's an invitation to think. And thinking together is the whole damn point of this parenting thing.
The Bottom Line
I spent years treating fatherhood like a performance. Every question was a pop quiz, and I was determined to ace it. What I didn't understand is that the performance was for me, not for them. My kids never needed a dad with all the answers. They needed a dad who was curious, honest, and willing to say the three most liberating words in the parenting language:
"I don't know."
Followed immediately by: "Let's find out."
That's not weakness. That's not failure. That's the dad superpower nobody puts in the parenting books. Use it. Your kids will ask more questions, trust you more deeply, and learn the one skill that actually matters: how to be comfortable not knowing, and how to go find the answer anyway.
Also, for the record: Rayleigh scattering. That's why the sky is blue. I looked it up. With my kid. At the dinner table. While the spaghetti sauce dried in the toddler's hair. Worth it.