Older women surprise. Trip dozens young girls many countries: motivation low. Annoying/boring or clueless turn man on—especially 18-year-olds. Teacher material maybe, but sexually aware interesting? Mid-20s start. Sweet spot: looks good, pleases, uncorrupted relationship fails. Window length varies country—American girls short. Dating evolution: youth cute, experience adds spark. Naive fresh; seasoned savvy. Balance rare gem.