Like everyone else has said, if it fits good and you feel good in it, then wear it!! I love my hollister jeans, I'm 29 and don't see my myself NOT buying them because I turn 30....
I agree with everyone else. I just turned 30 and there are several Hollister and American Eagle tees in my closet. I wear them whenever I want to be comfy and casual and I say wear them with pride! I even used to have this shirt from Hot Topic that had the Tootsie Roll owl on it and it said "How Many Licks Does It Take?" and I would STILL wear it if it hadn't shrunk to nothing! I also used to have a Care Bear shirt and I would wear it too if I still had it. That makes me want to do a search now...
I honestly think no one overthe age of 16 should wear those brands, although if it's just a normal tee or jeans, fine, as long as it doesn't have HOLLISTER all over the shirt