You're wrong. This was some time ago but I recall seeing a study that a 60 year old married woman has more sex on average than a single man in his 20s.
A 60 year old woman (well, a 65+ yo) doesn't spend 8+ hours a day at work or have kids at home.
But the study was about ejaculation, not intercourse. Single men in their 20s might have little of the latter, but lots of the former.
But definitely not a single woman, that wants to have more.