This is tearing me apart. On one hand I believe if we blocked all the bad stuff like YT, social media, games... they would certainly be bored more easily and get into more "wholesome" activities. On the other hand, I don't know if there are negative side effects of going full authoritarian that would outweigh the benefits. For now we walk the line, limiting social media but allowing some YT and games.

One unintended consequence I noticed already with time-limiting YT, is the kid is carefully planning her YT viewing usage and ends up not branching out to crafting/educational/etc. videos because she doesn't want to run out of time for the fun stuff. So this ends up unintentionally killing the desired content.

My gut feeling is that setting an example by doing (so like what you described) and occasionally recruiting the kid for assisting (but not forcing them to participate too much) is the right way forward. We'll see I guess...