Male Baldness Info

I’ve noticed that guys are getting that male pattern baldness much younger nowdays, why is that? seriously? how old were you when you started losing your hair?

Does it work for male pattern baldness? I was thinking to give it to my brother as Christmas gift. I know he’s disconcerted with his hear deciding to leave him and he is searching for someting that can help at least a little bit. He’s 30 and he sheds like a dog. I love his hair and I want them to stay.
If not Scalp Med, is there anything you found that works?