Does after marriage even exist anymore?

Not trying to offend anyone who disagrees with me asking this question, so it would be nice if I get some decent HONEST answers. Aside from Amish, very religious people and possibly people from other countries. Do people still wait to be married before they have . I hear a lot of students in my sociology cl saying that this is now obsolete. I mean in today's society I hear people say its RIGHT to wait until after marriage but they never do.....I just want to know if this is still practiced.