Funny enough, China already ran this experiment. Kids' smartwatches started as call-only devices for safety. Then they added friend lists, status updates, like counts, popularity rankings. Little Genius now has 48% of the global kids' smartwatch market [1]. Kids delete real-life friends for not having enough likes on the watch. Once a device enters a kid's social life, there's no market incentive to keep it simple.

[1] https://www.scmp.com/tech/tech-trends/article/3328227/move-o...