Women cutting their hair

Are women allowed to cut their hair? I heard some scholars say that this is not permitted because it is an imitation of men or the Kuffar. However, doesn't what is and isn't imitating men change with culture/times? Nowadays nearly all Muslim women cut their hair, and women cutting hair is considered normal in my culture (Turkish) and not all an imitation of men. Not to mention long/heavy hair is very difficult to maintain, and hard to cover fully when wearing a Hijab. So as long as the haircut does not imitate the Kuffar and is still long (not imitating the men), then is it permissible? If not, what is the proof of this?