I hoped he would somehow manage to go to his step daughters graduation, sometimes everyone has to go outside of their comfort zone for the people they love. I agree, he can cope with flying to America, he can cope with a TV studio, if I was her I would be very hurt. My husband is disabled and the university were wonderful when we went to my son's graduation, we used a different entrance to avoid stairs, didn't have to queue with everyone else. I am sure adjustments can be made.