I've tried it, MrsMC didn't like it, and maintenance was a constant job.
I did like the feeling. It also made women want to stroke my legs, which I suspect is the real reason roadies do it.
I once worked in a gym with an Aussie who raced mtb. In the gym, you could tell he shaved his legs, as they were smooth while he had clumps of body hair sticking out the neck of his shirt, like a gorilla.
One day I was in the changing room when he walked out the shower. He only shaved up to the hem of his shorts. I am still scarred by the experience.