Kids know how to do what exactly these days? Not much is my answer, what's yours?

This has been the dilemma since probably the beginning of time where kids, especially teenagers know absolutely everything there is to know except when to shut up and listen. Every Generations faces this and as these kids slowly mature into Adults they quickly learn they knew absolutely squat about anything especially the opposite sex and soon realize how much they really didn't know. Im sure this will continue on for millions of years to come too, so life goes on!! BTW this is exactly who and why President Obama catered to, to get POTUS