My guess is they decided it was "gross" and so they'd rather suffer.
This way they get the benefit of complaining about their suffering without criticism because it's a social faux pas to tell a person to undergo a medical procedure just as much as it's frowned upon to mock someone for suffering from a medical illness, even though the fix for their medical condition is getting an enema and sticking a couple of pills up their hee-hoo.
it's put in a tube down your throat, at least it was back when i was looking at options. Also, generally, you need a fecal transplant from someone in your household, but none of us have the same diets so i don't see how that would work.
Why?