DabDab
Ah mud, splendid
To a certain extent yes, but plenty of horses are put down now after failing to come right. And a 16yo still eventing at a decent level well now would be considered to be doing well, and that's without eventing these days demanding the level of aerobic fitness (that is the hardest thing to keep high in an older horse) that it did before on the old format.Yes, but horses were considered veterans at 16 and were usually past work by 20! Horses that were turned away frequently didn't come sound and were shot. People forget that side of things when they idealise the "good old days". We started riding as adults and were shown this amazing horse that was still doing cross country at 16. No one would find this worthy of note now.
There are certainly ailments that are more treatable now, but that is more to do with advances in veterinary medicine than general management.