Not everyone seems to be who he pretends to be. People act even they don`t know they just do. They build a nuthsell around them, try to please as many people as they can and are not themselves.
Your friends are smoking? You don`t want to be the one who`s left behind. Your people drink alcohol when they`re going out? You join them. But deep inside you ask yourself if you really want it.
I for myself like to do whatever I want and not because of being forced by society. That`s something what everyone of us should do a bit more often.