I'm 74 and deperate to go back to work. That is partly as I need the money and partly as I need to feel useful!
Unfortunately, I live in Luxembourg where there is no tradition at all of people working after age 65. The state pension, here, is so generous that no one needs to work beyond retiring age, with most people receiving a state pension that is more or less equal to their final salary before retirement!
Pensioners here don't ride the buses, they drive around in brand new BMWs!