I have to agree with L007 about the condom issue. They're excuses, plain and simple. Imagine there were no condoms in the world; would the statistics and opinions about teen sex be largely different? Of course they would. Part of the problem is that most teens believe that they're a catch-all solution, that condoms are the proverbial safety net for preventing the transfer of STDs and the risk of pregnancy. If by "safety net" you mean "overarching net to catch people if they fall... except for those who fall in the gaping holes in th net," then they're absolutely right. (Good luck finding people who actually know that.)
However, that isn't my primary problem with teenagers having sex. A lot of this correlates to my problem of teenagers thinking OMG what love really is. Now I'm not saying they understand it at any level at that age; I realise that isn't true. It has taken me until about my college graduation to realise that my definition of love wasn't quite the true meaning of it. If indeed sex is supposed to be the culmination of commitment that love has to provide between two people, then teenagers shouldn't be having sex for the very reason that they can't understand it fully at that point in time. (After all, those years are very difficult years where a lot of maturation is going on.)
As a result, it really boils down to a couple of cases:
1) If a teen has sex because OMG I AM IN LUV N WIL B WIT DEM 4EVR!!!111... get a clue and just look at the divorce rate that the likes of them might be causing.
2) If a teen is just curious and thinks that it would be a neat thing to try, condom (see the first point) or not, it's a completely reckless thing to be doing. While you're at it, why don't you just go try marijuana and cocaine while you're being curious? They're just as dangerous and deadly.

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