I don’t blame you a bit for it - particularly if you’re not bringing kids of your own into the relationship. That strikes me as not only reasonable but completely fair to insist on the same in return for anybody you would consider getting into a relationship with.
F-b, the terminology you use gives me the impression that you are in the accounting or econ fields. That’s fine. However, I have a friend (gorgeous, tall, blonde, childless) who married an accountant (short, fat, childless, buys a new sports car every year). He is a big baby with respect to his numerous physical ailments. He quibbles with her about the expenses for her little pet dogs. (She is financially independent and they have separate checking accounts.) Wow, did she ever get stuck. Nobody wants a man-child.