When I first met my wife, she was working in a low paid job. From her meagre earnings she would support herself and her Mum. I naturally wanted her to leave her work, and gave her the same money each month that she earned. She was in fact far better off as she did not have to pay any longer for food, accommodation, bus fares etc. It remained her sole responsibility to provide for her Mother and anyone else in the family if she so wanted.
This situation worked well, for years until her Mother died 5 years ago.
She still receives her monthly allowance - from which she buys her somtams, makes the mandatory Monk donations, contributes to village weddings, funerals etc.
It has always worked well for me, and because of this we never have arguments about money, like so many have.
Most of her allowance has been banked over the years, and she now has a very healthy bank account!