Well, in all fairness, he should take into account what his wife thinks.
After all, mine had talked about cutting her hair short but I didn't like the idea, I just don't think she has the face for short hair. And I like long hair, especially on women. The longer, the better, IMO.. and she never did cut it short. Also, I resisted going sly for several years because she was ... not really for it.. until I pointed out that I'm going bald on top anyway, not by choice.. and she eventually agreed that it just made sense.
I'll be honest, if I didn't have MPB, I wouldn't have gone sly. I'd have rock star hair. But, I DO have MPB, so sly is the next best thing!