The Aztecs forbade use of the wheel. It could only be used for children's toys.
The marvellous Franco-British aircraft Concorde is now in a museum.
It no longer flies. That is forbidden.
Too much progress is bad for you eh, like those men who refuse to lose their hair as they get older - Leads to Sickness, eh?
Even so, every time I raise the issue of injuries provoked by current aberrations, people act as though I had invented the wheel, or Concorde, or threatened to, or something equally dastardly.
I did not.
Classical dancing, at the present time, seems to be one of those lost-in-the-outback activities that are deemed to be a Science-Free Zone:
"don't bother me with the facts about anatomy - my mind is made up!"
Anyway, just so's yers knows that I'm not the only oddball goin'on about this, there's a fun discussion over at ballet co, where one "Wulff" has cited no less an authority than Joan Lawson.
Try this on for size:
http://www.ballet.co.uk/dcforum/happening/5609.html