Yeah, the thing a lot of people forget is that there are a lot of dumb, entitled guys in the NFL. They are entertainers, and for that we like them. But the odds of many of us fitting into an NFL locker room are pretty low.
A huge percentage of these guys would never have earned a college education, or even went to college at all, if not for their athletic abilities. They aren't as mature and well-rounded as your average "men", and that includes average dudes who also don't have a college education.
That's how you end up with the "weird" guys like Foster, Luck, etc. who don't seem to fit in. Because they don't, they aren't the norm in the NFL. But in reality, they're probably the closest thing to "normal" guys, compared to a lot of us, in the league.
So this isn't a locker room full of men that can handle their own ####. You're talking about basically 50+ overgrown adolescents who never had to grow up and in many cases, were never told "no" because their athletic gifts bought them all the slack in the world off the field.