Well heavens, that wouldn’t be because their father never taught them any of it?
If you want kids to exhibit these behaviours you have to teach them. I am slowly learning, but no thanks to my dad, who preferred not teaching me anything about cars or mechanics.
My dad was the same way, but I learned whatever I didn’t know and wanted to know by myself, or better yet - asked someone. There is a difference between wanting to know and not caring. With the web today, there isn’t an excuse for not having resources for virtually any maintenance issues.