The family wealth shouldn't be just one person job. It's a family tasks and you must work in team. When the father working hard enough to get some money, the mother shouldn't just spend it on unimportant stuff and also have to teach the children to save their allowance.

Some of the things that could be done regarding family wealth, such as:
  1. Be a team
    Create a job description on each team member. If there's a buyer, you will also need a negotiator. Your family will have a good stuff they need in a good price.
  2. Pay your family first
    Whenever you get some income, put it on family account first. You can use the money for emergency matter regarding the family and saving for multiple occasions.
  3. Make agreement
    List some of the things that will cause damage to your family financial, and why either of family member should never spend the money on it.
It will easier to achieve a goal if you're doing it together with the one you love. Good luck!