My only thought is a child or adult with a mental disablily or fear should be allowed a swap regardless of height. At soarin, this happen in front of us. The mom and dad wanted to ride, so they left their adult disabled son by the upstairs bathrooms. He very much scared my daughter when he grabbed himself in a very lewd way close to her, sitting on the bench. I looked for a CM but couldn't find one. Not because I was angry, but felt the wrong person may have hurt him. I would rather see them (his family) get a swap, then leave him along.