sorority hazing

I don't understand why sorority's at USC don't haze their new members. I mean at literally every other school in the country sorority's are just like frats at USC and girls must go through a process of hazing. I feel like because the sorority's don't go through a hazing process their are girl's that get into houses who really shouldn't be in greek life and are really not about partying or sisterhood but rather the status of being in a house, which is just unfair and stupid. There are a ton of girls in houses like Kappa DG and Theta who are really pretty but are just really bad sorority girls because they only joined it for the status of being in a top house. Overall I have notice that the Sorority girls at USC in general suck and are just so different then sorority girls at other schools and are just not crazy and want to have fun but rather are just stuck up and rude. I think that if USC wants to keep their greek life strong they need to make the sorority's haze once again and make girls who really want to be in houses prove it by going through the process.