My mom is also part of another "club" of people who give their time for free. This is a sort of knowledge exchange. The entrance fee is ridiculous it is 1€ per year and everyone can arrange classes with topics that range from art to botanic or even sport. In the end it is only about one's mindset and one's curiosity! There is more to life after work than one thinks.
They used to broadcast their material on weekend mornings on BBC2, a kind of educational Youtube avant la lettre in a more Reithian time when it was deemed a worthy use of one of the four available channels. I learned all sorts of random fragments that way as an interested kid.
They also broadcast overnight, with the expectation that learners would record the material for later viewing. There was something beautifully surreal about people shambling home from the pub at midnight and turning on the TV to be lulled to sleep by a lecture on non-Euclidean geometry or medieval history.
And the fanfare: https://www.open.edu/openlearn/education/educational-technol...
It's also worth pointing out that the US has many excellent community colleges, offering academic and vocational education at reasonable tuition fees. If you're a retiree and don't care about the signalling value of a credential, a community college is an excellent place to pursue your education.
This is awesome, but part of it is enabled by her being relatively high class. These kinds of things should be sponsored by the government because they keep people healthy.
I remember reading somewhere that mortality risk increases considerably after retirement, plausibly because people become more sedentary.
PS I'm in Portugal if you're wondering. Here they call it Senior University - a bit better than Third Age if you ask me.