Long hair for men

I've been floating this idea to lots of people recently and everyone hates it.  But I still think it's a good trend.  Nothing grody, just to-the-collar or a little past.  No ponytails, necessarily (although that could be a great dirtbag look).  Kurt Cobain stuff.  It's how the high school boys wear their hair, and trends start in kid culture more and more these days (here's another youth hair trend (chunky highlights) that I think adult women will start wearing soon), so I think once those kids are in their twenties (in just a couple years) this could start to get big-time.  And with all the employers rushing to accommodate the lifestyle demands of Millennials (while whining piteously about having to do so), a less-clean-cut look will get accepted more easily than you might think.  There's already a movement towards this in the slightly-oily mini-mane that the kind of bankers who idolize Patrick Bateman have been sporting.  This also fits with the long hair trend with women.