I was married at the young age of 19. Yup, I know... besides possibly setting a new record... I am also "crazy." But, don't worry, you don't need to tell me that, I already know. In fact, I've heard it all:
"Didn't you just get out of high school?"
"It was just yesterday that you were in diapers!! You're just a baby!"
"Don't you think you should date more before making such a big decision?"
"Are you sure about this? It's a lot of responsibility."
Followed by:
"I wish I waited a bit longer to get married and just let myself have fun. You can't take back these years, you're giving them up to get married, you can wait you know."