Clearly, something must be done.
Someone could help the little-girl take care of her baby. It could, for example, be adopted by its grandparents, provided they can show themselves to be suitable people to raise a child. Unfortunately, the question "Have you allowed your 15 year old daughter to get pregnant by a 13 year old boy" tends to feature quite prominently in most "Are you a fit person to raise a child?" examinations. Alternatively, then, the baby could be taken into care by her local authority: initially placed in some idyllic care-home; then looked after by loving foster-parents; finally adopted by one of the many childless couples who are desperate to give happy homes to motherless infants.
The trouble with this is that the very same people who are wringing their hands about the thirteen-year-old-dad have a deeply held fear of the state, and of social workers in particular. They doubt that governments should ever decide what is in the best interests of a child; and they doubt that social workers ever really have those interests at heart. They suspect that their actions are really motivated by politics or ideology or social engineering. (Apparently, social workers get a cash bounty every time they take a child away from its natural parents and place it with hoh-moh-sexuals. Would Richard Littlejohn lie to me?)
So, then: the little-girl who foolishly allowed the little-boy to make her pregnant could be prevented from actually having the baby. Medical science can manage such things, I am told.
But the very same people who are wringing their hands about the thirteen-year-old-dad think it very wrong that pharmacists should give morning after pills to little-girls, or indeed teenagers. Many of them think that it is wrong that doctors should give free, confidential, honest advise about terminations to little-girls: or, indeed, anyone else. Many of them have an a priori belief that abortion is wrong even in these messy circumstances: some of them have been honest enough to say so. (The Pro-Life Alliance praised the little-girl for having been brave enough to have her baby rather than getting rid of it.)
But the very same people who are wringing their hands about the thirteen-year-old-dad think it wrong that teenagers should be given access to contraception; or even given information about contraception. Contraception causes pregnancy, don't you know? (Would Melanie Phillips lie to me?)
So. The little boy who didn't know anything about contraception shouldn't have put his banana anywhere near a girl, but dealt with it in the way that little boys always used to in the olden days when there were no teenage pregnancies at all. [Check this - Ed.] But the very same people who are wringing their hands about the thirteen year old dad think that it is outrageous that the subject of, er, you know, Thing, should be broached in sex education lessons. Sex education should be all about the human reproductive cycle and not at all about feelings, emotions, or strange movements in the trousers. And (of course) no-one of any age should have access to pornography and the internet should be banned.
So. We'll probably have to re-organize our society in such a way that little boys are not allowed to go anywhere near little girls until they are old enough to know about and cope with the consequences of their stiffies. Let them be raised in all-male prep schools; socialize in all male sports clubs and Scout troops; educated at all-male boarding schools and all-male universities; and spend a few years in a presumably all-male armed forces. If it is absolutely essential for them to interact with females, let them be accompanied by parents, chaperones, maiden aunts, burkhas etc. (Of course, the very same people who would probably find this a perfectly sensible suggestion also think that sodomy is a very great evil, but let's not go there.)
Or, if that's not possible, then at least let's implement a regime of Rugby Football, Scout Camps, Look and Learn, cold showers and Mecanno to deal with the problem at source. No-one in the olden days ever got an erection - they were all far too tired.
But even this wouldn't really address the basic question, which is: why do boys insist on having willies in the first place? They didn't have them in the 1950s. Look at an Action Man, or any boys comic book. Crime only began in 1945 (would Tony Blair lie to me?). I'm guessing that people started to have willies at about the same time. Probably TV, or the internet, or coca-cola, or feminism caused them. If we could only go back to the sensible world where everyone was neuter, then this sort of thing simply wouldn't happen.