America's first response is always to ban and demonize for the wealthy class to then exploit. It never fully works but succeeds enough to degenerate the overall good.
Ummm, when was that "banning", exactly? Because i see ASL interpreters in court, at speeches, town meetings, sporting events, on this video, indeed everywhere except on the radio, duuuuh.
It's in the vid but I think they said the late 1800's. My interest was mostly in how Americans always try to ban things and it doesn't work. Often for the greater good's benefit.
200 gestures average human has - sounds like a lot, until you start adding them up.