Roblox has had leaks where they've talked about finding ways to encourage kids to pressure (bully, tease) other kids into spending money in-game.
And it works. I have three boys and I've seen it all. Kids are harassed if they're wearing the default/free skins, etc. It's the modern equivalent of kids being teased for not have Air Jordan's. And, Roblox isn't only okay with it, they actively look for ways for kids to approach the game this way.
Now, I'm not actually saying this has anything to do with the game not being on PlayStation, or that Jim Ryan actually cares. But, Roblox is a pretty crappy and predatory business that makes billions off of the ignorance of kids.