> Seems like a big issue is I'm guessing insistence on having this be a solo operation for cultural reasons.
I had to do some stool collection and it took every ounce of willpower and a N95 mask to prevent me from vomiting everywhere. And that was my poop. I think it's more than cultural, there's a strong visceral reaction.
On the other hand, I can pickup my dog's poop no problem.
Nurses are heroes.
Take a couple proper cowpies over the waterline and you will get over that fast.
But parents do that all the time with babies.
It is disgusting (I hated doing it) but you get somewhat used to it relatively quickly.
Having an repulsion for shit is a healthy adaptation. But it seems that for some people they're much more sensitive.
Similarly, it's probably useful for a primitive person to vomit on sight of a familiar person vomiting, collective protection. Definitely a trait to find out before going to space!