Why do we care so much about apperance and being social so much?

just a general question here. i do not want to sound ignorant or one sided but i just wonder why do people care so much about there appearance? i mean girls with completely perect staight blond hair and a pathetic fake tan and stupid *** make up? i mean i know not all girls are like this but why do you care so much? guys aswell. guys buying stupid *** face wash so that there pours open and get rid of spots. wtf why do you care so much. im ok with sexual equality but not so far that guys are wearing make up. i dont even like girls wearing it. i thinks its pathetic and hirrid. looking at there skin and its perectly flat with nothing there. basically a blank face. it just makes me laugh and think ewww, sorry ive gone of topic a bit here so basically why is appearance so freaking important in todays world?