I'm 21 and I would not subject a woman to what it would take to be married to me right now. I'm not old enough to have got the partying out of me yet. I have some things right now that I like doing (drinking, smoking cigarettes once in a while) That I know would have to stop if I were to be married. I'm also not totally sure what I believe in all aspects of life yet and I have serious doubts about how to raise a family because my example was not normal or that good. I don't want to put anyone through all the ups and downs that will go along with finding these things out.
Once I've got the partying out of me and figure out what I believe and how a family would work for me, then I'll consider getting married.
That being said, I don't know anyone who knows themselves as an adult enough at 19 to get married and have it really work.
