Are Stigmas All Bad?

Back in the olden days when I was in high school, there was a stigma against unwed mothers. Not that it didn't happen, it did.

These days (around here at least) there seems to be an epidemic of young, unwed women (and girls) becoming pregnant and flaunting it. They have baby showers that are announced in the local paper. They share Title 19 tips. And some continue to procreate without the benefit of a partner to help them nurture their children.

Am I nuts, or are stigmas sometimes a good thing?