The problem is that just like boycotts/individual action doesn't work (besides a handful of lucky exceptions), this won't work either if all your kids' peers are on it. Being the "odd one out" brings its own share of problems, especially in a volatile environment where any pretext for bullying is a good one.

This is why we need regulation. Both for child-focused platforms, but also for adults (regarding social media).

I agree mostly. But I would push back on the idea that you need to let your child do whatever (play on Roblox, get fancy clothes or toys, etc) because of bullying. You're trading one set of potential problems for another set of known problems, and letting your own fears dictate how you raise your kids. How do you expect your kids to stand up to peer pressure as teenagers if you give into their peers when they are younger?

I get it. We all look back at the pain from our childhoods and try to shield our kids from that pain. But unless you want your kid to be average in every way there's going to be a chance of bullying. Focus on building a strong relationship with them so that you can guide them through it if it happens.