It's not about vanity Tizzi.
A lot of men do have a serious hang-up about hair loss. They think (incorrectly) that women don;t find bald men attractive. Some of them go for the 'comb-over' which of course fools no-one, but it is that desire to appear to have hair that matters to some men.
As a folically challenegd man myself, I have a Number One every week, and don't care. I know what my attractions are, and what they are not. i did have really nice curly hair, but it went, and it ain't coming back, so I accept that.
However, i am lucky - a lot of men have severe psychological issues about their hair, and I sympathise. i do think it matters much less now, when crops are fashionable, and ladies let it be known that they don;t judge their man by his scalp coverage - would that men were not that shallow!