I agree as well. No one suggested putting anyone aside.
I think the point is that those who can delay gratification report better results among many different measures. We should accept that and teach these skills.
Some girls who don't know how to control emotions get pregnant. Boys that don't know how get girls pregnant or worse.
They drink too much, spend too much, call in sick for work, fail classes.
I'm using extreme examples, while I don't want to kick these people out of society, I want to find them and try to teach them.