You do know that you don't have to wear gloves? You only need to have washed your hands. Even if they wear gloves, dandruff can fall off the hair, dead skin cells from the face and arms, small body hair. Every breathe out carries spit, snot, microbes, etc. Unless people wear NBC suits, it is part of life.
When you eat homemade food or cakes, then you can bet the producer has had hands in it. Finger nail dirt, bacteria, dead skin cells.... all included

. This isn't a problem as it is the way things have been made for thousands of years.
So this is a non-story.
