User blog comment:ChishioKunrin/Why the introduction of ABRN is not a bad thing/@comment-25405817-20150823005059/@comment-10380701-20150825073628

Modeling and animating hair is the hardest shit, right alongside skirts. I haven't even reached that phase of my course yet and I'm already aware how absurdly insane it is to do that kind of crap.

It's no wonder MMD videos don't bother too much with hair/clothes physics; Only the best ones will put the effort to make it work.

It also explains why you rarely ever see characters with hairs as long as Yang's in AAA games.