Government perks. If they all went away, and they should, we'd quickly see marriage lose it's importance for many if not most people.<quoted text>
What is the point of the license. Why does it matter who marries who?
As far as end of life issues and all that, a simple contract with someone you trust will do fine.
It's tax time. Boy would I like to check another box besides "single". So would my girlfriend. But neither of us wants to get married.