There were 80 something guys working much younger ladies out before the advent of drugs like viagra. Men that take good care of themselves can be sexually active deep into their life span.
To answer your question. My life choices will determine when I retire. If I fall for a woman and make her my SO, then I am finished. Same goes if I father a child. I only speak for myself, but those are the retirement triggers for me.

Just like giving up smoking. Trying to pick a day to quit..lol

With the present shaky economy it would be

highly irresponsible to quit as this might push it into a full-fledged depression!   LOL

I have met with exceptional ladies for over thirty years now .

I made a lifelong  decision  then to remain a single Gent since my first escort encounter in the UK .

NSA and enjoying a variety of exotic ladies...it has and is still an exciting and wonderful journey!

Peace,
Lance

92

I am at 52 now, that leaves me another 40 years of giving lovely women please. Even when my cock no longer works I am sure my hands and tongue will still do the job.