>However, it's undeniable that at that age it's all about fitting in and it would likely make them feel like a bit of an outcast if I were to limit them from being a part of it, l
Should homeschool. The elimination of peer pressure makes alot of these choices dead simple. "But all the other 11 yr olds are going to the 3am tattoo orgy" just isn't a counter-argument I'll ever hear in my household.
The real trouble is that you're constantly running around playing whackamole with the router, there must be 3 or 4 dozen social media platforms I have to police. And Youtube, like it or not, is probably essential, so it can't be blocked really... my daughter is using it today to learn to sharpen knives (wasn't a boy scout, never learned it myself). Though, last week I expected that she'd want to use it for cheesemaking, but she worked from a written-word recipe (was kind of proud of that). Best advice for Youtube is to just try to keep an eye on what they gravitate to when watching and steer them away from the garbage.