Carl, if all parents were like you, I do not think there would be a need to discuss sex education and condoms at school. The problem is; not all parents are like you. Due to that, I believe the presentation of condoms is better than the alternative.
Talk to the kids who get knocked up ... guess what? Many of them HAVE condoms or knew where to get them. Many fo the girls that get pregnant chose to accept the risk - partially because we talk up the idea of pregnancy. Plus, when the welfare system encourages kids as a means to bolster your income, abstinence and prevention becomes counterintuitive.
Once upon a time we had social mores that partially ostracized kids that engaged in these activities. Today we glorify it. In some states it is even a potential path to emancipation.
Education, yes. Tools to engage in risky and immoral behavior, no. The logical extension of the argument that "they are just going to do it anyway" would be to provide hotel rooms for sex, alcohol to drink, filtered cigarettes to smoke, and pharmaceutical drugs provided by medical professionals. Yeah, it sounds absurd, but to many of us who stare in mystified amazement at the ever diminishing role of propriety in public education, we find it sad and terrifying. Our collapse will come from within, not from without. When we lose our moral center, it is then we will collapse. Personally, I doubt that we could point to a moral center any longer as there seems to be no singular sense of moral principles to look to for guidance. The mantra today seems to be, "if it feels good, do it."
Both sad, and terrifying.