I've just got a PS4 and set up local child profiles under family management for my kids. When they go to play Gran Turismo Sport it recognises they are a child account (screen says some settings may be restricted by parental controls) but still prompts for them to join PSN and they are unable to save progress.
My expectation was that they would not need their own PSN login as they are children under my PSN account - is this correct?
I'm not sure if this is a general thing or a GT Sport specific thing
They don't have email addresses of their own, and I don't really want to set up full blown PSN accounts if I can avoid it