Can A Relationship Ever Really Be 50/50?

I have often heard women say they want a relationship where they are treated equal, a relationship that is 50/50. That left me to wonder if that is even possible and I have come to believe in most cases it is not. Let me tell you why. I honestly don't know too many women willing to pay for 50 % of the dates they go on, to split household chores such as taking out the trash, and perhaps open doors for him on occassion, okay perhaps that's an exaggeration, but you get my point.  Although a lot of women don't take the time to consider what that really means or they've thought about it and aren't able to follow thru with all this type of relationship requires. What do you think? Can a relationship ever truly 50/50?