Not failed parents but society. It is illegal to do what it takes to keep women from going full slut. We need to return to a society where it is socially normal for a woman to be married by 19 and to start having kids immediately. Otherwise teens turning to casual sex is inevitable.
Waiting until 19 for marriage will still lead to premarital sex, you'll need to drop that by a few years to keep women off the cock carrousel.
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