I followed Reine's link. If a man is worried about being identified as a cross dresser I think there has to be more to the visual than longish hair. Just about all the men in the link have facial hair and rugged angular facial features. Some look rather disheveled. Over the years I've seen a lot of adult men with pony tails. The look is totally different than men with a stylized feminine look. Of course, on weekends with a clean shaven face and a can of hair spray the transformation can be rather striking. Where I live I do not see a generational divide on long haired men. Back in the 1960's long hair on men was a symbol of protest, being a hippie. Now, it seems rather ho hum, yawn!

With coronavirus everyone I know has hair growing wild. With male pattern baldness I'll have to stay with my longish grey wig which matches my sideburns.