that sounds great but what real difference does having a legal marriage make to this arrangement?
Love is all in the mind and a piece of paper is going to change this except for perhaps a very short time.
boyfriend and girlfriend or husband and wife - what's the difference apart from a few financial benefits?
Love is not all in the mind. It inhabits every cell and molecule in your body. This is a very strong belief of mine, not scientifically validated, but oh well.... I think I'll live without the empirical deification on some things I hold dear.
A legal marriage symbolizes inside and out what we have committed to each other. It enables responsibility. It helps us think our troubles through and improves us. We can't always have instant gratification and we shouldn't always want it, either.
It also has a lot of practical uses which I will allow others here to enumerate for you. Or you can go look them up.
Marriage shows a kind of grown-up maturity in the society we find ourselves in.
Hey, whatever floats your boat. I can't decide for you, only you can do that. If you don't like marriage and don't want to get married then don't. Fill your boots.
But to suggest marriage should be abolished simply because of your views on it, seems immature and not very well thought out in my opinion.