Sometimes raincoats fail. That is why any person having sex needs to be prepared to raise a child, even if they are “faithfully, responsibly” using birth control. EVERY birth control has a fail rate, including tubal ligation and vasectomy (their fail rate is about .2%, but still)
That is one reason why minors should not have sex. And why statutory rapists should be severely punished.
The success rate for condoms is 88%.
The success rate is more like 98%. Higher when some "special sauce" is added.
I have no problem with minors doing what they want as long as they're taught proper relationship skills. If they're in a loving committed relationship(measured in years) and know how to keep themselves safe. Misguided attempts to force them to behave through abstinence education are destined to fail. Only when minors have the social and emotional skills to handle themselves will they be able to deal with life's temptations effectively.