Stop doing this

Now I don't want what I'm about to say to be misinterpreted. I respect older people. They won the war, which was fairly impressive, and we all appreciate that they did (apart from neo-Nazis).
But why are older people unconditionally entitled to things for free, which impacts on the rest of us?
For example, my Dad would be able to take the bus for nothing. Now, he doesn't. Because he has a very nice Mercedes car. I, on the other hand, don't have a very nice Mercedes car, but if I want to take the bus, it costs me £1.60.
The reason it costs me £1.60 is that half the people on the bus aren't paying for it. Now I assume this is somehow government subsidised, but there's nothing free unless you steal it, so we're all paying for it somewhere along the line.
Maybe older people should be encouraged to either own a nice Mercedes car, or just stay at home.
And here's another thing!
Right! (Rant alert)
They have a sign telling you to give up this seat for an elderly person. Aye, right. Even though you've paid for a ticket, you're expected to be prepared to stand up and allow someone who paid NOTHING to sit down? Is there any justice in this world?