My kids (ages 10, 14) have never used a Windows computer. They were introduced to computing with iPhone and iPad, and they use Chromebooks at school. At home I have Win, Linux and MacOS computers, but they've only used the MacOS ones (not interested in the others). I am trying to get them to use Linux, but unless they want to do hacking-type stuff (that's not them), then it's hard to sell them on it.
When we buy them personal laptops (not there yet), it'll be a MacBook Neo (or its successor). I expect that unless they're forced to at work, they'll never touch a Windows computer in their life.