I think this all comes down to the entitlement mindset too many people have. It is reinforced everywhere. The government, parents, teachers. People are taught they are owed something by someone. I see it everywhere. Driving, Disneyland, grocery stores, restaurants, you name it. "What? There's rule? Well, those don't apply to me. I'm special. I deserve it."
I still think (hope) those people that think that way are the minority but if they are, the majority sure as hell isn't doing much about it. We shake out heads, we get mad, we might even say something. These self absorbed brats look at you like your the one out of line. That's if you're lucky. You might get a gaggle of them gang up on you and wag their fingers at you for being so selfish!
Unfortunately, these societal shifts require societal correction. You or I aren't going to teach these people to behave. Hell, they'd have to be able to admit they might be wrong in the first place. Trying to lecture someone is a fools' errand. Maybe personally satisfying, but hardly effective.