There's plenty of ways to make games outside of Roblox. Maybe they could sit down together and work through some Löve2D or Godot tutorials? No one can take that away arbitrarily
replyI think GP meant “collaboratively” as in collaborating online through the game itself. The same way you might e.g. collaborate on a Google Doc.
reply“Sit down together” might be impractical here, if GP’s child’s friends are e.g. friends they made before a move, who are thus quite far away physically. Or friends with snobby parents who won’t let them come over to GP’s house for whatever dumb reason. Or friends with extra-curriculars such that their free time never lines up with GP’s kid’s free time—meaning that only async collaboration will work.
(That’s just a steelman position, though; in general I agree.)