I know some retired CEOs, and they are not very busy.
They all keep working from the few I know, it's a certain kind of person. Almost a curse. Even with hundreds of millions. One is doing django alongside me almost 12hr/day... lol...
I know some retired policemen/public workers and they're doing handsomely. Went hunting one time and this guy was decked out, asked him "what do you do?!" Turns out he's retired police...
20yrs gets you 50% of your salary for the rest of your life on top of whatever else you saved. 3% more every year you stay on.
The guy I met hunting was in his 50s and has 30+ years in the force. He's getting like 70k/yr lol
Same with my highschool gf's dad.