How is a 20 year old supposed to dress?

I feel as though at the age of 20 you should still be able to dress however you feel comfortable. Live your life the way you want to run it, not how society thinks you should run it. Now when you are turning 90 or so you this question may be more reasonable, ive seen some old women who really need some advice and need to come to reality. lmao. But anyways, i don't feel like your style should your own, not the same as everyone else's.