We were watching the C5 show and asking ourselves the same question, Jen said she would have played with the older guy possibly but women who were that much older just weren't her thing. I would tend to agree, above a point it becomes a bit weird and starts to feel like the other people are more our parents age (especially for Jen).
Admittedly we are a bit shallow and are probably more interested in the other people being reasonably attractive rather than becoming lifelong friends, but thats just us ;)