Out of curiosity, how many people do you know who are doing that 'living in commitment without marriage'?

I've found it helpful to know of and be in social contact with other couples who have chosen to stay unmarried, as validation, I guess, in the face of social pressure. If you want to explore the concept-space more [sometime later, not now], I have a fair amount of articulated thoughts on why I don't want to be married, and how I have shaped my life and my relationship(s) to handle that.