Good point Goldsbury-san.
The Japanese budo system has long required the use of hakama. They had no trouble with it then, why are we having trouble with it now? Even traditional jujutsu wore hakama in their practice back then, and they do grappling.
P.S.: Japan in this case does not include Okinawa. ;p Just in case people going to put Karate/Okinawa-te/Shorinji-kenpo into the argument.