All the long hair you want:
Seriously, for me, short hair has been a practical necessity. Even if I'd wanted long hair it wouldn't fit inside my helmet. Later, civilian employers had "grooming standards" that proscribed long hair, bushy beards, flamboyant mustaches, piercings etc.
The idea behind it in American corporate culture seems to be that your long hair might offend one customer in ten thousand but my short hair will probably not actually offend anyone. YOU might think I look like an inmate
but you probably would not refuse to ride on my airplane because my hair was not down over my collar.
In my personal opinion a man reaches a certain age where long hair begins to look silly. Near the end of his life, Lyndon Johnson wore it down over his collar and looked very foolish. Also, IMO, long hair is much more work and so a man who wears it long is probably vain about it. Vanity, in western culture used to be a feminine trait. No insult intended there, I think we are actually well past that bit of judgement, but still ...
Most straight mails spend more time reviewing the beer menu than they do on looking good. Sorry, I can't brush long hair and still have time to clean under my fingernails. One or the other has got to go. I dry my hair in twenty seconds with a towel, brush it over one time and I am done for the day.
Now in the entertainment field, and among those who do not have to worry about what their employer thinks, it is different.
My vanity lies elsewhere. Besides, my hair gets wavy when it gets too long. Long hair is sort of like a hat. Wear it with confidence or not at all.
Happiness is not seeing another trite Ste. Maarten photo all week long.