I think you gave solid advice.. depending on his age or future hairloss.. transplants might only be a temporary solution at best. You know some people only have diffuse thinning and others will continue to go bald. I mean they just need to be educated about everything first. Find out what kind of hair loss they are suffering from.. this might not even be the typical male pattern baldness.. Keep in mind the points you said that at a later date as you lose more hair than you might have to find another alternative or even more transplants.. but if they or you or whoever has the extra cash and doesn't mind even a short term solution.. Than transplants could be an option. I think transplants should be better for minimal hairloss because you can't get that much coverage with them. So its like people in this situation are more ideal transplant candidates but at the same time they might lose more hair like you just said. I would use a cosmetic concealer like prothik first. It looks like that would be enough.. And if the hairloss gets more severe than get a hairsystem. But like i said if they have the extra money to burn and want a possibly short term perm solution than hair transplants should be an option