But the term 'Roblox Devs' can also include other children. You seem to be missing the point a bit that kids used to be able to make games and share them with their friends for free. Now they need a paid subscription and a face scan to do that.

Yes it makes sense when you apply it to adults, but Roblox was made for kids to share and play with other kids. When you look at it from that angle it makes no sense.