Fate does not exsist. Basicaly if it did we would have no meaning for life( which is a lifelong question), But i believe people say fate exsists so they don't have to say a god controls our actions. Another tie in to that is if fate exists it gives us something to blame the bad things on. If there is fate you don't need responsibility for your actions, like when you break an expencive vase and your parents say," Take responsibility for what you've done." if there was fate, they wouldn't be mad at tou because you "couldn't control your actions".