The problem is that the external platforms that the children progress to generally have much laxer protection systems than Roblox does, and thus end up more vulnerable. I just chose Discord as an example as they're the most commonly cited chat platform that exploitation beginning on Roblox ends up on, and they also have problems with their trust & safety team that allows this to occur.
Meeting IRL is a problem as well, it just makes up fewer of the cases.
Meeting IRL is a problem as well, it just makes up fewer of the cases.