

It is sometimes recommended that each person have TWO toothbrushes to ensure that it dries thoroughly between uses. You don’t want to be culturing your mouth bacteria on your toothbrush.
You also don’t all have the same mouth biome, because you likely have different oral hygiene habits, diets, etc. So no, you don’t want to share toothbrushes, those of you with less healthy oral biomes may be giving undesirable stuff to those of you with healthier ones.
That is a deep fundamental problem in our culture. Not recognizing the immorality, even grossness, of casually weilding the kind of sums of money that can buy and sell other people.
And it’s relative, and many of us are guilty of it, and even if we recognize it, most off us can say, well I’m not as bad as those people, pointing to those above us. Most westerners, even fairly poor ones, are in that position wrt people in other parts of the world.
I’m neither blaming anyone, nor letting anyone (including myself) of the hook. That’s beside the point. We need to change our culture’s understanding of this. How, idk, except that every time we can point at it and say WTF!?! we should.