Stay at home moms which take care of multiple children full time typically do not earn an income
If you offload your responsibility of paying your expenses upon another, you surrender that freedom to them.
If a couple wants equality, have separate finances and incomes and make agreements as to how any financial matters that must be handled together should be handled.
Budgeted amount for say toilet roll.
Decide whose bank account to use for it.
How to re balance as expenses change.
For each expense or group of expenses.
Each spend kinda needs to be tagged. It is a lot more work.
Might be OK if you have no kids and are renting.