The american pie mentality...?

So some of my friends didn't get the good good while they were in high school. Now they keep whining about it. My other friends got the good good, and turned out ok, and you can normally hang out with them. I'm just wondering, this mentality is a constant pressure effect on them- why? i know some people don't do it from the get go, and turn out allright, but others just develop a complex disorder about it and constantly whine about how it sucks and that they want to do it because everybody else did. And then at some point, people start considering it into a pride form, etc etc. Is it just the weaker end of society that gets pressured into this or is it the universal mentality that cannot be avoided through those high school years?