In the US? Not many. We also don't eat horse, cat, and in general don't eat elk, deer, squirrel, possum, racoon, or boar; but some people do. Most people in the US don't eat things you can't buy at supermarkets.

I guess you may eat some if their saliva, or excrements, or dander by accident. It gets everywhere. But there is nothing to be afraid of.