I am very new here, but I would like to make a small suggestion on this topic.
How about getting a sample of the 3 most purchased (by women) men's fragrances? I know the idea is for a man to chime in (and I am a man, but no experience with theses scents), but if enough ladies like his fragrance, that might give him the confidence boost that he needs.
I figure that if enough women are buying certain fragrances for their men, then they must be great. Have him try a scent a week and see what happens. Because the scents are so unique, I can imagine that a few of the girls his age will ask about the smell. Have him ask the girls if they like the smell first and how much they like it on a scale of 1 to 10. Then they might ask him what the scent is and If I were him I would say something about only sharing that information with very close friends or something like that.
Then he gets an entire bottle based on feedback in his social circle, class, etc.