I need to (after a fashion: my script is OD +0.25 OS +0.50 spherical, so I'm slightly nearsighted), but I don't. So while I barely need to, I guess i'm just making it worse. The reason I don't is my current pair isn't quite good enough.
I'll probably get glasses after I get my vision reevaluated in May; I'm too poor to buy a pair of glasses that'll only last me 5 mos before I need different ones.