I think everyone enjoys sex and if we embraced it like we did when brothels were around or how europe does today it would not be a problem people getting sex for free
I don't believe people even use the word starter wife or marriage like your buying your first house that you already plan to move out of in a few years.
Considering how many cases are linked to smoking either first hand/second hand etc you'd think with the tens of thousands of deaths a year they would make it illegal.