Why are relationships catered to women?

I personally feel like In most relationships the man has to cater to the woman. On dates it is about whether or not he paid. On holidays it is about what the man got for the woman. On marriage it is about what kind of ring, how he did it etc... I feel like this is bullshit and there should be a 50/50 effort. Anyone else agree?
Why are relationships catered to women?
Yes, it should be 50/50
No, the man should do all the work
No, the woman should do all the work
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Why are relationships catered to women?
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