I didn't say Whispers couldn't have long hair that looked nice, however he did what I did with my long hair when I had it until last weekend...which is brush it, wash it, and leave it at that.
Doesn't look good, refer to Aneko's post for long hairstyles that men can do to look more clean and nice. There are plenty of those even for short hair. Men no longer have just a few simple styles available to them.