Roisin, I think that wanting to go but convinced that he won't be offered a place sums it up well. That is also a very good thought and a good attitude, as it would allow a rejection to be coped with well, if it does come.
One thing that DD said, which came as a slight surprise to me, is that everyone was very, very nice and friendly. There were six interviewed at her college for her subject for just two places, yet it wasn't at all a competitive atmosphere between the candidates - stressful, yes, regarding the interviews, but not competitive.
Instead, it was supportive, with the the candidates all getting on together very well. It seems that everyone took a "we are all in this together" attitude, knowing that only two of them could receive an offer from that college.
DD said that she learned a lot from the other candidates, and that they helped her to catch up on some elements - she has followed a different course, so has a few gaps on the things that are not covered on her syllabus.
The fact that the other candidates were so nice and helpful and friendly, as well as interesting and clever, makes her want to go there even more. The fact that they are all so clever and interesting and "bright and sparkly" means that the college/university has plenty of great candidates to choose from. I think it is easier to accept a rejection if the other candidates are great.
Perhaps we should change the terms here - can anyone suggest another term for "rejection"? How about "non-offer"? or "negative offer"? I do feel that just to be there, having that experience of academia, is already an achievement. It is sort of the equivalent in sport of competing at national level, knowing that you won't win but being able to enjoy the privilege of interacting with others at that level.