I don't really believe in marriage as we understand it now, to me marriage is was and always will be the joining of people in a permanent domestic role.
As for when I want to settle down, I don't know.
I don't date around a lot as it is, so I don't give it much thought.
I don't think anything my parents(I use that term loosely in regard to my father, my moth was my only real parent) did with one another will have anything to do with my actions.
I blocked them out of my life a long time ago and they were more like strangers living in the same house as me.
As for arranged marriages, as long as there is no intent to harm the other person, I really have no problem with them.