My daughter figured out how to do something in Roblox on her own (i.e. without my help) when she was 10 y.o. or something like that. So yes, the barrier is pretty much non-existent.
And it's possible to make pretty decent games with it. Like I saw FNAF on Roblox recently. If somebody told me it's a standalone game made by professionals in Unreal engine, I would have believed. It looks good.
