Minecraft was a (fairly) original idea, it's been out for 6 years or whatever, and it already has an enormous fanbase. So no, I don't think Lego Worlds will succeed. At all.
Of course he's going to ask you questions about it so that he knows whether he wants to build it or not. And how would he get a job as a home designer (whatever that is) or a game designer from making you a medieval build in Minecraft?
