> if a man wants to start a family - for love, stable companionship, socially/culturally accepted and probably easily accessible sex and, finally, passing on his genes - the need for bettering himself still applies now as it did then.

bar for that is higher than ever. My ex had a entire stream of guys in her DMs trying to chat her up on instagram. its nice being top of the hill but no one stays on top forever when there's never a break from that kind of competition. thats why Im happy my current gf is not on social media at all.