Yeah Hindu vegetarians & vegans often don't eat alliums, it's a requirement for the Brahmin ( priest class). Hindus from other classes do often eat alliums, but not always.
They use asafoetida instead
One of my little things I enjoy doing during the season of Lent is to eat pork every Friday. That way, I am breaking Catholic, Jewish and Islamic rules all with one meal. I'm such a smarta$$.
CD