Keeping peace

Why can't people just get along.I have always went out of my way trying to keep peace.I think some people just want to act like little bratty kids.Oh well what ever makes you happy is what one should do.Many times I have bit my tongue just hoping I would let it go and not say something that later would come back to haunt me.Hope I don't bite my tongue off one day.In my old age I am trying my best to give people room and just let them fume or whatever they do.I just think some people are just rude big mouths and that is their problem not mine.