Fair enough, didn't realise that - lots of older people where I live! A lot of people donate because their friends or family have required blood, though.
Not necessarily the case. If you're O-Neg like myself they're always keen for you to donate, as that blood type can be given to just about anyone ('Universal Donor'). If you're the first O-Neg of the session at my 'local' then your blood goes into paediatric bags, which is always quite a nice...