Finally the tables have turned and it's becoming more common for women to date younger men. Men have been dating and marrying younger women for eons. Now, providing for ourselves financially, money has afforded women the freedom to look for love outside the traditional, older, "provider" type of man, or even a peer partner.
Many single gals over 40, 50 or 60 look fantastic. They maintain their youthful figures and energy and as a result, crave a romantic partner who looks as good and can keep pace. This explains the sudden surge in May-December romances over the last 10 years. The term "cougar" is passé now our society now because older woman with a younger man is an accepted notion.