Why people swear so much?

Swearing is like anything else in life , it is a habit picked up by seeing others doing this . It is said to appear tough or to express anger with something or out of just plain habit . It is a nasty habit that many people get into and I am one of them people that do it without even realizing I am doing it when I am angry , upset or frightened about something . Growing up this was how my dad handled situations that were not working out for him and this was something I heard everyday and picked up on this habit . It is not a nice habit to have and like any other habit has to be broke .