why is my cat so afraid of visitors to our home?

Image by anselm23
Bee’s Diner is a project to raise money for girls’ scholarships in
Sarasota County for college. Here we have fresh-made potato chips on
the left, a cheeseburger with fixin’s, fries, and a chili dog.

Question by bg: why is my cat so afraid of visitors to our home?
Our 4 year old female indoor cat is very affectionate with my husband and myself, but when we have visitors, including our adult children, she hides, or runs from them and even hisses at them. she has bee raised totally indoors since she was a kitten. Oddly, she likes workmen who come to our house to fix things and even rubs on their legs and lies on top of their tools.

Can you help? Leave your own answer in the comments!