Dreads seem to be the natural state of hair, regardless of race, without ANY combing or cutting.    There's no practical reason to have them. With modern haircare, someone has to try pretty hard to have dreads considering haircuts are cheap and combing takes about 15 seconds. They also are job-blockers, akin to having a face tattoo. Except it's like a face tattoo that can be removed. I wouldn't recommend them to anyone who is not a crust punk.