[defrost]

There's no single one stop comment for the entire planet.

My experience of Japan was that older people stay active longer .. and people like to have purpose and part of that can include looking after each other as people grow old and diminish in function at differing rates.

My experience of parts of some countries such as the UK and the US is that people get fat and relatively inactive some what sooner than I'm used to seeing in here in Australia and elsewhere (Vietnam, Nigeria, etc).

My father had a farming life early on, he's returned to a farm adjacent life in his early 80s, otherwise he's worked largely around minesites as a worker, foreman, manager but has stayed active walking about plants and constantly improving land they've owned by building walls, shovelling tonnes of literal shit for the garden, etc.

Fostering a sense of local community helps ease the changes as people age and there's a place for cross generational interaction in life also: https://www.youtube.com/watch?v=13_rJVvxx_g