Roblox's awesome growth in recent years has been long in the making, but such scale has brought a new level of scrutiny to what may now be the biggest single gaming experience in the world. There are all sorts of criticism faced by the platform, but the most serious by far relates to its overwhelmingly young audience (a February 2022 SEC filing says over 60 percent of Roblox users are under the age of 16, 55% 12 or under), and whether it does enough to protect them from bad actors and the type of content children should not be seeing. Many parents don't think it does enough. And not for the first time, some are taking action.