Why can't guys wear skirts?

they can. theres nothing wrong with it.

No one said they can't. It's probably just considered weird because skirts are usually what women/girls wear...they can still wear it if they want but I am not sure how long they'll last with all the criticizers.

Guys can wear skirts if they want to. There is no physical incapability that prevents them from wearing a skirt. The reason guys do not wear skirts is because the intention of the skirt was for women to wear, not men. Plus, in today's culture, it is considered just plain wrong if a guy wears a skirt.