Genuphobia is the name of the phobia relating to the fear of knees
Genuphobia
Petaphelaphobia Petaphelaphobia
Your boyfriend probably has Genuphobia. This is the officially recognised phobia of knees, as strange as it sounds.
The closest thing to a phobia of a child touching you would be Pedophobia which is the fear of children.
Social Anxiety is a blanket term for fears pertaining to people or social situations.
Aphenphosmphobia, Haphephobia or Haptephobia or Chiraptophobia.
Coprophobia
Clavicaphobia is the irrational fear of touching or seeing collar bones.
dressaphobia
I am not sure of the name but yes, people can have a phobia of anything, for example, my friend is scared of tomato ketchup.
atychiphobia some people have this phobia