I want to do this with my nieces and nephew, if they and their parents are willing. I think I already screwed up, though, when I bought Amazon Fire tablets for

I want to do this with my nieces and nephew, if they and their parents are willing. I think I already screwed up, though, when I bought Amazon Fire tablets for three of them for Christmas in 2017. Granted, they were around 3 years old at the time, so maybe they couldn't handle anything more. Still, I'm wondering what I should buy them next time. My sense of nostalgia tells me that I should buy them something at least as hackable as my Apple IIGS was. But that might not be practical. As one of my best friends pointed out to me, if I buy them an all-open-source computer, they're likely to protest, "But Uncle Matt, why can't it play [insert kids' TV show here]?". And they're not likely to accept my anti-DRM stance.