I would feel the risk for example anyway. Cause imagine if you are loosing with demo acount sometime than what can be that with real money ? Do you see my point here ? So yes emotions are still here presented with all that, just not that much maybe.
The issue I see is that when you lose on demo, is the majority of people will have the attitude of Oh well its not actually my money.
I don't doubt people will try and want to win on demo, but there is no money on the line.
The other issue i see is having less fear, being less cautious when entering trades, which will change when using a live account.
Mindset and emotion are major factors in trading successfully.