I will tell you why. We all, as human beings yearn for attention, fish for compliments, pine for someone's approval and want to show the world what we are. Unfortunately, that is not what we are. We do things to impress people, to make them get a good feeling about us. To judge us.
Why should you keep updating a status, checking-in at random places whether you are there or not, bombard people's feeds with every square inch of your activity at different points of time in the day? Am I interested to know if you wore blue jeans or yellow underwear? Do I want to know if your front porch is washed with pretty pink spring flowers or filled with pigeon poop? Ohhh, so you are eating cupcakes? So? I think cupcakes is the most boring bakery-item anyone can drool over, unless it is covered with gooey chocolate that melts in your mouth. You drool over a cupcake and oh, I am SO judging you. My opinions about you slip down by several degrees. Yes, I am judging you. Why? Well, YOU asked for it!
You find it difficult to adapt to the harsh reality of day-to-day life and, also the reality of having to deal with the ones that are not part of this cult called 'social-media'. The ones that do not know what Facebook is, what a handle on Twitter means or even don't know how powerful the medium is, that given a chance, it can track you down to the extent of pointing a gun at your temple in the very privacy of your house because your 140 character tweet was insinuating.