I've always thought that maybe modern monogamous relationships have failed men, especially alpha males with good genes and high sex drives. Seems to me at least like they hit their sexual maturity later, and develop strong mature dad bods and big dicks and a thirst for younger fertile women. At least from my experience they seem to check out younger women more in public. Equally younger women love older guys and daddy types and are at their sexual peak. Both my ex and current gf had daddy issues, and whenever ive seen my gfs porn it's typically mature, strong dad bod guys in them. Maybe back in cave men times the older guys of the tribe would be responsible for protection and breeding, the older women whose sex drives decline would move more into a caring and gathering role, and the younger guys would hunt and provide.