Despite growing up in the 90s, a Commodore 128 was the only computer we had until maybe 1998, when we upgraded to some sort of Macintosh. It was just Frogger, Montezuma's Revenge and OutNumbered! for me on computers until we finally got a Dell of some sort running Windows XP in like 2004.
I got all the pain of different OSes growing up, but now it's just Linux and OpenBSD for me these days.
having all the time in the world is a perk of being 5-6 that allows you to learn things like that especially when they come in a shiny new game box. I don't think that's necessarily indicative of anything.