I traveled to Roblox's headquarters to do a demo of a new safety feature it says will help protect child users.

Officials in Florida and New Jersey are scrutinizing popular video game apps Roblox and Discord over child safety concerns. Florida Attorney General James Uthmeier issued a subpoena to Roblox Corp.

There are certain elements to video games that can go “under the radar,” if you will, and be almost undetectable…until it somehow goes haywire, and then you say, “Great, I’m going to have to deal with ...