Am I wrong for not letting my daughter go to a sleepover with a transgender boy?

Photo by Sharon McCutcheon on Unsplash

I should say this friend is two months from 18. The age is not an issue with me because they have been close their entire lives. This friend is a transgender boy. Last week a third friend had a party with friends, it was going to be my younger teen daughter’s first sleepover away from home. But the boy was going to be there. I told my daughter, “Your…