I think the people who are concerned with this are familiar with how food is made at restaurants. For example, I worked at a pizza shop in high school and occa

I think the people who are concerned with this are familiar with how food is made at restaurants. For example, I worked at a pizza shop in high school and occasionally someone would request we wash our pizza cutter so that their veggie pizza would not be contaminated with meat from previous pizzas. We, of course, accommodated their request without issue. But I worked there for years and saw this request maybe 2-3 times. And that may have been the same customer. The people who take that level of constraint are a tiny, tiny fraction of the already smallish customer base seeking meatless/vegetarian food.