it's sort of like saying someone would look better without their noses. what are they supposed to do, cut it off? people need glasses. they're not thrilled if you tell them they'd look so much better without them.
it might not be a really offensive thing to say but it's not a nice one, either.
oh man, you didn't just go there. some people can't wear contacts! allergies, heavy sight-correction needs, all kinds of things can prevent you from using contacts. some people simply don't want to wear bloody contacts just because me or you say they'd look better without glasses. it's a gross thing to say, can't you see?
was at a university library once, and this really pretty girl walks out and this guy ogling her at the door attempted to say something, but she just looked at him, stopped dead in her tracks and said "you wouldn't last", much to everyone's amusement, including myself who were all laughing, he was dumbstruck and she walked off proud as can be
He was being nice
Personally I think lots of people look better without glasses
it might not be a really offensive thing to say but it's not a nice one, either.
Calm down