I know a bunch of people (kids) that got married as they got out of school & uni (around 18-23 years), had kids, some are still together, most are not. The cool thing is that their kids are now teenagers and able to look after themselves and their parents can come out for a night without major dramas. Makes up for my other friends who didn't find "the one" until their late 20s/early 30s who are now getting pregnant and not able or inclined to come out for a night like we did when the first group were having their kids.
I love being the cool pseudo-auntie to the older ones and corrupt the babies as they come along.
I am going to hell, but damnit, I'm going to enjoy myself on the way!!!!