To be fair, there are, if not mostly rules, at least generally accepted behaviors for men as well especially in many religious settings. And culturally more broadly such as wearing shorts in many circumstances.
Men's clothing is also getting more interesting again, with attendant public hand-wringing in certain circles.
Now, shorts are allowed even in funerals in the Caribbean, there's this special suit with jacket n shorts, long socks, because the heat is unbearable even the political monarchs wear that suit, like that suit is checkmate.