I totally agree with you , one can be a disciplined trader even if real money is not at risk.We don't have to "feel" risk. Feelings in trading is BIG BS. All you need to look at, is your performance chart ; and to do this, you don't have to put money in the line ; people who are saying that with "demo we don't feel the risk" are simply saying that they are not enough disciplined and patience to follow a trading plan even if there is no money in the line.
In my opinion, as long as you can't produce a positive track record on demo for at least 6months straight, you are not a profitable trader and there is no point to put money because you will lose, it is simple mathematic ; if some one is starting to talk about "feelings" in trading, you can turn back and immediatly don't listen to this guy, because he has understood NOTHING about trading. And if I hurt your feelings by saying that, you are not mentally ready for trading, work on your mindset first.
We are here to earn money with our mathematically profitable solid systems, not to "have feelings". What a big BS this story of "risk feeling" LOL