A thousand times this. It seems like no one cares about the elderly driving but they are frothing at the mouth to punish young drivers and make increasingly harder - and non-nonsensical restrictions on them. But a 90 year old man that can't see and hear can drive as much as he wants without any restrictions even though he is arguably higher risk than a young person who can see, hear and react faster
Old people vote, and tend to have more effective lobbying groups than young people do. Those under 18, in particular cannot vote, and those just over often don't.
On a possibly related note: nobody I've voted for for Federal office has ever won that office. I don't know enough about the relevant theory to say what effect that might have on how hard a politician should go after my vote, but it seems noteworthy.