Whilst I know there are folk who enjoy eventing and sailing well into their 70s, they have usually kept it up over many years, not suddenly picked up after several decades - I know Lilian rides regularly, but she hasn't done eventing AFAIK since returning to Ambridge.
fiorentina51 - TA has hit quite a low point, with 'comedy extras' and strange storylines. This, to me, is the effect of Covid on Ambridge, which has been otherwise unscathed. No-one has become seriously ill or died from it, but their brains have been affected so that they behave strangely.
However, an upside of this strangeness has resulted in nurses getting a mention (Ambridge usually jogs along without them) as midwife Amy is reputedly returning 'for a break' and Ben starting his training. Even Denise gets a voice, although of course in Ambridge, a veterinary nurse would be more important than one who only cares for humans.
As for me, I regard TA as being like my family and my village - I don't even think about whether I like it, it is just part of me for better or worse.