Is it necessary to be a vegetarian as a Yoga teacher? I know it is advocated but some are not. Besides Jesus, Buddha, etc were not vegetarians (Buddha not all his life anyway), yes I know they were not Yoga masters per se even though some people claim Jesus went to India in his missing years (not accounted for in the New Testament) & studied Yoga becoming a great master.
In terms of physically performing Yoga a vegetarian diet cannot make any difference whatsoever; anymore than it does for Olympic athletes some of whom are meat eaters whilst others are vegetarians.
From a spiritual point of view if we take Transmigration from Hinduism where everything reincarnates and can transmigrate e.g. someone can be reincarnated as an animal or plant etc (not just human reincarnation as many have the notion of in the West as transmigration was deemed a bit baffling for them when many Eastern sects started growing in the West); then not eating animals, what about plants and vegetables, etc? Or are humans then animals (even though everything transmigrates) considered much higher than other things on earth.
From a marketing or promotion point of view, if you are not vegetarian as a Yoga teacher people might be like mmmm and expect you to be one. Also you might get vegetarians coming to your class shocked that you aren’t or even not coming back to your class after finding out, whilst vice versa you won’t get any meat eaters coming and being shocked when you tell them you are a vegetarian.