The barber would ideally allow you to change only hair, haircolor, skin color, facial features etc, not body types and definitely not your name.
Before you say that we shouldn’t get one because it was not in original vanilla. We already have healing mages and tanking rogues okay, so that argument is invalid.
Many players would appreciate this feature as certain races character creation screens have poor lighting, which makes it hard to get your characters skin color right, for example with undeads and night elves. Many of us rushed through the character screen to reserve our names or rush through to be able to play with friends at launch. Some of us are trying new races such as undeads but although we were happy with the color on the character creation screen, it may look different in Orgrimmar.
In IRL, we do change our hair from time to time and sometimes we even get tans so yes it’s a video game but it shouldn’t be difficult to imagine that sometimes your character changes their looks once in a while.
If priced right, this would be a good way to have an extra gold sink in the game.
This feature shouldn’t need much resources to implement.
If you don’t believe its in the spirit of vanilla classic you can just not use it. Other people using this feature should have no affect on you but I am staring at my character all day so I would like this feature added.