Narz
keeping it real
You can call them stupid but that's why most people get married. Nobody gets married cause they're like "oh boy, monogamy!".Those are stupid reasons, and should work just as well without marriage. (Except fitting an image, but it's a stupid image, and doesn't fit nearly as well if everyone knows you're boning other people.)

Also, most people don't exactly want people to know they're boning other people. Regardless of your views a large percentage of married people have cheated & will continue to cheat all while enjoying the benefits of marriage (such as companionship, longer lifespan, etc.). Of course some cheat because they're unhappy & will eventually divorce but many want to have their cake & eat it to and they will and many either won't get caught or they will but will work it out & still be glad they got married. That path is not for me but it seems to work for some.