many people choose not to get married as a form of birth control?

 However, unless you are using a condom or birth control pills or the morning after pill if you are having sex with the opposite sex often the female is going to get pregnant. When people don't think this way someone almost always gets pregnant anytime after puberty for both people.

So, not getting married as a form of birth control is sort of ridiculous from my point of view. IF you are going to have unprotected sex it's always better usually (if the couple is male female) to be married to protect everyone involved better whether it is the man, the woman or any resulting children from their issue.

So, thinking you are limiting the children in the world by not getting married is always a ridiculous way to look at everything.

For example, from about 1969 until 1973 males that I knew mostly didn't use any kind of protection so if they women they were with didn't use some kind of protection like IUD or birth control pills often some of them got pregnant. This is just reality folks.

But, when AIDS started around 1980 all the sexual freedom of the late 1960s and 1970s just went away as a part of individual and group survival and people who didn't take precautions often died of AIDS in the 1980s in droves (by the millions worldwide).

So, choosing to not get married as a form of birth control for humanity is a completely ridiculous proposition in the beginning, the middle and the end.