Yeah, the guy behind PICO-8 is big on education and having the whole thing as accessible to children as possible.
There are a lot of people using it to introduce their children to game development and programming in general, and it's (supposedly) a blast for both them and the parents. I always felt that while our PCs have gotten 100x as powerful, they paid a big price in accessibility for actually getting stuff done on them when you're 10.
For adults, PICO-8 has just about the right amount of restrictions to keep you productive while still letting you create something worthwhile.