So, judging by what you say, teenage pregnancy is more to do with poverty than choice. Not according to the Telegraph 03 January 2009.
Not according to the Telegraph? No fucking shit.
I gave up there.
Free-markets are "A-OK" because on aggregate society gets richer. (Ignoring for now, as they do, that the evidence suggests this isn't true.)
but...
Teenage pregnancy rises can't be about the system, we have to analyse at the individual level.