That's an interesting idea. If I have kids maybe I should tell them "you can play any game you can run on Linux. Here's an Ubuntu CD, helpdesk is at google.com. If you get really stuck tell me what you've tried so far and I'll give you some suggestions on what to ask Google. Oh, by the way, if you'd like to write your own games, I'll be happy to help you."
For the last 15 years or so I have insisted most people I mentor, even young teens, build a new primary computer from parts and build Gentoo on it including the kernel.
When it boots successfully and can connect to the internet we then move on to helping them do any daily task they once did on Windows or MacOS, including gaming, art, schoolwork, etc on the new system.
Most choose another distro eventually once they know how to patch any software when needed, but some stick around and go on to develop operating systems themselves.
By the time you have kids that are old enough to play games, if you do, then you’ll probably know that this is an impossible conversation. The process will instead be to create a mystique out of your own habits, which the child will find intriguing.
That was me. I was given a Linux laptop, shown how to connect to the Internet (from a terminal), and basically told "good luck". 15 years later, I am happily working on embedded Linux systems.
I would encourage you to also spend time teaching and mentoring them even if they havent tried. Kids thrive on this kind of attention, and feelings of support.
