0 points
It is, mainly because in ye olden times, birth control didn’t really exist and if an unmarried woman got pregnant, she would be ostracized or worse.
2 points
And on top of that, the child then might have only one parent to look after them, putting them in a harder upbringing.
Besides which, I’m given to understand there’s more to healthy relationships than sex today, bugger off tomorrow - which is a common enough plan from some.