Much like the job of ruler or king, anyone who wants the job is disqualified.

My hope is that means "correct use of contraceptives."

My problem with a 'qualification' to go through a rite of passage is that the rite of passage is what turns you from unqualified to qualified. When can we trust someone to make decisions about sex? When they're not a virgin.

And so we either need hard control (no sex until your wedding night with the socially approved partner) or little-no control combined with acceptance of mistakes (regretting your choice for your first time is commonplace). The idea that a licensing agency could differentiate between people that will make good and bad choices about sex is as ridiculous as the idea that a licensing agency could differentiate between people that will make good and bad choices about driving. The future is too uncertain to have good predictive ability.