I think for many young bucks, it's an online porn addiction till they can't psychologically relate to a real live woman. For others it's the "Tinder" culture of boinking 3 -4 girls a week that by the time they are 30, their wiener has the mileage of a 75 yr old man with ED from diabetes meds. Men have become used to assembly line hookups, till it becomes something to do and not something to aspire and look forward to do. Bang, next, bang, next, bang, next, rinse and repeat. They have successfully boinked themselves out of the eligible dating and marriage pool.