Cash for vasectomy....

[Anomalocaris]

Oh, I forgot, because in a perfect world drug addicts make the best choices.

One might think the consequences of an ill-judged choice to have a vasectomy to be considerably less severe, and impact fewer people for a smaller number of years, than the consequence of an ill-judged choice to expose their future children to the effect of drug addiction. Since the former precludes the latter, one might argue for accepting the possibility of the former in order to better forestall the latter.