Teenagers now engage in more virtual interaction over social media, and the number of teens with driving licenses has decreased dramatically over the same perio

Teenagers now engage in more virtual interaction over social media, and the number of teens with driving licenses has decreased dramatically over the same period - I think the scope of their social interaction has increased, but they have significantly less physical privacy. They spend more of their time in contexts where adult monitoring is possible. I also think the availability of porn and the increased pressure to adopt a low-time-preference mindset also alters the risk/reward calculus of potentially procreative sex. With the disappearance of much well-paid blue-collar work, both in reality and the public consciousness, derailing the fast track to college is much more costly than it was in the past. On a more speculative note, I can't help but wonder what the effect of more widespread hormonal contraception has been on female sexual desire, and maybe even on the prevalence of environmental estrogens potentially affecting males.