People dismiss the man bun as a trend, but because it takes a fucking long time to get one is a more stable trend. Letting my hair grow 2-3 years ago was the best thing I did, because you have major control on the shape your head has. I'm letting my beard grow too so I can draw a strong fucking jaw line to go with it too.
Few years ago everybody was rocking a variation of undercut and since it was so easy to get one, nobody said shit, it was just a cut.
EDIT: Had I had a man bun and lifted in HS, I'd have fucked all kinds of bitches.