Everyone I've known with angoras kept their hair shorter because with their grooming, etc, they didn't want to chance blockages and it really seems more comfortable to the buns themselves.
We are as gods to the beasts of the fields. We order the time o' their birth and the time o' their death. Between times, we ha' a duty. - Terry Pratchett.
"Men have forgotten this truth", said the fox, "But you must not forget it. You become responsible, forever, for what you have tamed. - Antoine de Saint-Exupéry