Both notions encourage the primary mistake that the woman has not an equal economic place with the man in the marriage.
Marriage is a business as well as a sentimental partnership.

But a business partnership brings grave practical responsibilities, and this, under our present system, the girl is rarely trained to face.
She becomes a partner in an undertaking where her function is spending.

The probability is she does not know a credit from a debit, has to learn to make out a check correctly, and has no conscience about the fundamental matter of living within the allowance which can be set aside for the family expenses.

When this is true of her, she at once puts herself into the rank of an incompetent--she becomes an economic dependent.

She has laid the foundation for becoming an Uneasy Woman.
It is common enough to hear women arguing that this close grappling with household economy is narrowing, not worthy of them.