Considering PRP at 22 years old?

So, after initially planning on undergoing an FUE hair transplant but being advised not to by JoeTillman and several others chiefly because of my age (fair advice I think) I've been thinking of going for PRP instead. Is that advisable at only 22?

I understand it's only a temporary fix and I'd probably have to go for another treatment every year or so. I think I'll go for one treatment and see how effective it is verses the cost. If anyone can recommend any good places to get PRP done in the UK I'd be very grateful!