As a corollary to this, perhaps one of the most heartbreaking moments for a kid whose parents welcome their questions and feed them information is when you finally discover they don't actually know everything and that you've exhausted their ability to teach about a certain topic. I remember reaching that point several times and it always upset me, all the way from first playing around with computers and dad not having all the answers, to finally getting to maths beyond what either of my parents were taught towards the end of my high schooling.
It's upsetting, but I guess it's also gratifying if you can step back from the moment and realise that it means you're also becoming just as wise as those who you've always looked up to. That's powerful.