Hey that is wonderful H :)
We seniors need something to do with the time on our hands.
The problem with many seniors is they have no hobby or they do not belong to a club or organization therefore they sit at home and vegetate.
It is wonderful to see seniors actively involved in sporting events, community, club, organizations and family (the most important) events.
There is nothing wrong with retiring early (prior to age 55) but you need to substitute your career/occupation with something else. The old grey matter and your muscles still need a work out regularly, like everyday not just once a week.
When you read articles like the above post you just have to admire what some people do and accomplish with their lives.

Cheers...Happy Landings...Doug