What can happen if a person's social identity does not match with his/her self-identity?

So many things could go wrong,
First the way we socialize with people are different on so many level, i Quote "Do not socialize with any body above you and Below you because you have noting to gain from it.
Social life is all about meeting new people and connecting with our environment but most importantly the way we relate are different and sometime faking ur way of life make it easier to move with your peer.

Advantage of false identity.

1) you have your privacy.
2) you can be any one you want.
3) is more like starting a new life over again (if u have a criminal past) e.t.c