It's commonly accepted that, for instance, people aged 18-25 tend to be more attractive than people aged 25-40 (on average).

Hookups also don't take salary and things that improve with age into account, as it's irrelevant to how good someone is at sex.

With that in mind, why don't we see more older women hooking up with younger guys? I know of 2 from personal experience (with me), but my female friends tend to hook up with older guys much more often.