why is the world full of smartasses?
Not everyone is a smart ass so don't judge a handful of the world unless you know that handful, a smart ass will exist in almost every household and it is because humans are all different, and smart assness(?) is a form of sarcasm so don't worry about it.
And it's not "because it is how the world goes round". Human activity has nothing to do with the study of how the world spins and rotates around the sun.
Over-inflated EGO....full of themselves....AVOID SAME !....You be Happy !
Good Luck and God Bless !!
because it is part of how the world goes around
It's better to be a smartass than a dumbass.