If it's a local option that you can toggle and doesn't affect anyone else... I'm all in for it. Why not?
I like when some games restrict some classes to some races, it's a nice feature really, as well as having more unique racial abilities, stats changes, etc., things that REALLY impact the gameplay and are not just for the looks. That all would be amazing and way more in tune with actual classic fantasy RPGing. But again, this is talk for another thread.