I see marriage as love transaction
You love this person and want to give her not just your love, but also security, protection, material things, share parental love toward kids, have fun together etc.
This person is, of course inspired to give you her love and everything else.
Is this idealistic understanding of marriage?
Maybe so, but for me it's only way how I want to live in marriage.
If you thinking only about money, of course that you don't need marriage, love or kids.
You can pay for everything in today's world and you will receive it.
But, are you sure you can call it love and can this fulfill you 100 % and make you truly happy?