If marriage is more beneficial for women, why aren't all accepted?

Believe it or not, there has been marriage proposals that were declined. Surprising isn't it?

So that's the irony to it. Why would a woman say no to something beneficial for her? If it's more beneficial for women and makes her feel more secure, why aren't all marriage proposals an immediate YES?

If marriage is more beneficial for women, why aren't all accepted?
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