From what I can find it can be a form of Claustrophobia
Stairo-phobia
Basistasiphobia or Basostasophobia
They're standing back to back.
If you stand back-to-back. you will both be standing behind one another.
they are standing back to back
John and Mary are standing back to back.
dressaphobia
Wenda is to the left of Waldo (who is standing SW of the spaghetti table). She is standing near the chef and behind two people.
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
up phobia
The father and son/daughter are standing back to back.