My BF has beautiful shoulder-length brunette hair with blonde highlights and I've wanted him to curl it for along time. Finally last week he agreed to let me set it in my hot rollers. (He looked soooo cute in rollers

). It looked great, kinda Elizabethan, when I took it down, and surprise! He loved it!
I don't like perms on girls or guys, but if you want curls why not set in rollers - doesn't matter your gender.
Next step is to get him to go to my salon -- my styliist is dyin to put him in velcro rollers and pop him under the dryer
It's only hair, you should have fun with it.