why are sweatshirts cool but sweatpants are not?

the only time sweatpants aren't cool is if they're too small and you see the weird ankle elastic all bunched up or if people pull their socks over them. otherwise they're okay.
 
yikes, azal...

anyway, what's wrong with leaving the house in sweats? i think dudes that wear sweats that are like, not totally tight look fine. echo makes really nice sweats. they're not trashy or dumpy looking if worn correctly.