I can think of a couple of million trends that have been worse. I don't care what a person does with their hair as long as its clean. I think hair is about the most perfect plaything because it grows back no matter what you do. Yes, there are horror stories of hair falling out due to overuse of dyes etc etc but for the most of it, no matter what, you can just 'start at square one' again if you want. I don't 'do' my hair because I'm lazy and I know if I got any particular cut that requires effort, I would end up ignoring it, so short of a grocery store dye box every 6 weeks, that's the story of my hair.
But I like seeing what people are doing with their hair. Man braids look fine (then again, I've been watching Vikings LOL), don't mind man buns...like I said, there are/have been many trends that have been worse. Nothing will rival baggy pants and butt cracks. I would walk all day behind a guy with a man bun than five minutes having to look at the behind of someone whose pants are around his knees.
I like it "long, straight, curly, fuzzy, snaggy, shaggy, ratty, matty, oily, greasy, fleecy shining, gleaming, streaming, flaxen, waxen, knotted, polka dotted, twisted, beaded, braided, powered, flowered and confetti, bangled, tangled and spaghetti." - okay, not the oily/greasy but friends from the 60s and 70s will know where that's from LOL.