Why do most people regulary tell lies? Why do people behave this way?

weel in my opignion, i would defenitly say that most people do tell lies, but sometimes it ok but only depending on what it about lets say that you are on an interview and they ask you a question and you just make up some random answer.... to cover your mistake.... like i sayd in some occation you can lie but if you lie all the time none stop, people will stop beleving what you say cuz they will think your lieying about everything. You can lose your friend to, its not fun