Actually there are a number of studies that show even the elderly get horny and enjoy a good lay. One study even suggested the decline of sexuality in old age is more due to the side-effects of various medications than age itself.
Sorry, but women can be just as interested in sex as men, with women typically wanting it more than men when they peak sexually during their thirties. And that is based on scientific observations, not the views of a sexually repressed patriarch.
I totally agree that women can be just as interested in sex as men - or more so. Actually, I would add "OF COURSE women can be just as interested in sex as men - or more so." At ANY stage in life.
Sex is too individualistic to make blanket statements about it. But generally speaking, young men are really horny, and women in their thirties are really horny.
Sex is great. I plan on several more decades of enjoying how great it is.
I will say this though - I think as we get older and more settled into long term relationships, sex becomes more integrated into all the other interesting and time consuming aspects of our lives and relationships. It's not that it's any less pleasurable, or less fulfilling - to me as a relationship balances out, sex finds it's place so to speak - and that place is in amongst the kids, jobs, dinner, 401ks, laundry, triumphs, failures, aging parents, grandchildren, tragedies, daily walks, dogs, moving, fixing the disposal, gardening, trips to the museum, concerts, Little League, promotions, layoffs - in other words life. As you build an intimate relationship, things other than sex develop.
It's not that sex becomes less important - it's that it shares it's importance with other things - and there are only 24 hours in a day.
That's why it's critical to determine what our priorities are - individually and with our partners.
Life is short.