I for one, if I was going bald, would not shave my hair off because I reckon I'd look crap but if it started looking really bad then why not.
Some person who knew what they were talking about, mentioned that hair recedes after puberty anyway. There are some guys who lose hair at the corner of their forehead when they're 20 and who then keep that hair until way in their late 30s. I think a dermatologist described it to me as a secondary sexual characteristic just like facial hair. It's what differentiates men from women. Only women are supposed to have an almost round hairline.
If you really think that you need to do something about it in the meantime because you're very attached to your hair and hairstyle (some people are), only two proper solutions for you:
- Minoxidil lotion, buy it at any Boots. Don't be ashamed, they see people buy it everyday and even then, you're out in a few secs. It's proven to stop hairloss and is recommended by dermatologists. No need for a prescription
- Propecia (look it up on google). Prescription medicine that acts on the hormones responsible for hairloss in most men. You'll have to talk to your GP about it. At first, he's unlikely to want to give it to you and will probably recommend minoxidil but if you're commanding and say that you're sure you want the treatment, I doubt he'd refuse if he agrees that you are losing hair.