Cricket. There are many different roles in the team and you get to hang out outside with your teammates all day. Also, if it rains you go inside and have something to eat.
Golf.
Not the most professional, though there are world cups, but playing pétanque is surely something you can do til 65 and beyond!
Does chess count?
If esports count, I’d like to be like this guy and get a contract to play rhythm games professionally
Otherwise… Probably swimming or race walking, not too many professional sports I could think of that one can do into their 60s without wrecking their body
CS… never was good at it, never will be, but it’s somewhat fun at least
Chess boxing https://en.wikipedia.org/wiki/Chess_boxing
Years ago we tried Karate-Chess at my Dojo. It was fun as hell.
Table tennis
Foxy Boxing
Finally, a person of culture.
Do I have to me good at it or is someone just going to pay me to do it regardless? I guess motorsport
Biking or swimming
Magic: the Gathering
It’s a sport if it was on ESPN!
Online Chess is now officially Esport… so that… xD
I’d be the next Hikaru Nakamura, live stream chess stuff and act cool af.
Curling.
