That is absurd! From 1973 to present there have been huge changes is our society's approach to sexual matters, and one of them is a widespread abandonment of child sex education in schools, including discussion of the mechanics of sex, contraception, and protection against STDs. Also, menarche comes at an earlier age than previously. Also, social media have encouraged frank discussion of sex and allowed access to vulnerable girls by predators.

Banning all abortions, which is what you seem to want, would result in no decrease of unwanted pregnancies in any age cohort. Banning all abortions would return us to an era when only the wealthy could afford a safe abortion, and the relatively poor would return to coat-hanger abortions resulting in an increase in dead 11-year-old girls.

You are essentially a self-righteous person who wants to tell others how to live their lives.