This is a recipe for soooo many disasters!!
I understand wanting to be out of debt but there are other ways of going about it besides sacrificing your relationship with your spouse and children. Not being an available mother to your children and bringing stress on yourself and everyone in the household is too high of a price to pay..even higher than the debt load they carry.
This schedule is just plain wrong and it turns everyone into roommates existing in a home instead of a warm and loving family centered environment. Oh how sad that this family will not eat meals together but the girls will reheat dinner and eat alone...just plain sad. I think of all the wonderful conversations lost, and questions unanswered and not asked because adults are not there. So sad!! Even when she is home she will be playing catch up on housework while exhausted and not available to her kids.
I would suggest talking to a debt counselor...consolidate debt and come up with a plan...it will take longer but worth it. Have a family council and get hubby and kids on board to scale back on expenses. THis can bring a family closer together when everyone takes a role in the solution to the family's problem. Kids can choose not grumble when they are having beans and rice and salad for dinner day after day or simple bag lunches at school. Kids can choose not to grumble when Holidays are spent a little more meagerly. Parents can make the bigger financial decisions of maybe selling a home or car and cut back on other items. Have a yard sale to get rid of items not needed. THis WILL NOT pay down the debt but get the FAMILY on board to work together to cut back. A yard sale with a purpose is a life lesson the parents can teach and model to their kids so the cycle of debt does not continue. Examples like these will teach better than M. leaving and being gone round the clock and exhausted and unavailable physically,emotionally and mentally checked out when home.
I wish your friend the best. Debt is a horrible black cloud following you around constantly. It is one of the top major reasons couples divorce...it is a constant stress. Take this time to teach the kids how to NOT get into unnecessary debt. We teach these lessons all the time. Our only debt is our modest mortgage. We pay off our one credit card payment each month..never carry a balance. We plan ahead for big expenses and only pay for an item if we have the money. We buy sales, eat home cooked meals and rarely go out to eat.
I really hope your friend does not choose this work schedule. THat is no way to live a life. She will regret one day when her kids are grown and gone and thinks back on all those lost moments. She will regret it when her kids look back at that time and feel anger and resentment that they were left alone. Her kids have very big special needs that need constant overseeing and monitoring and teaching. But the one special need all kids have is a M. or dad there to help teach and guide. Or it is replaced with friends, t.v., computer "friends"(which are sometimes very "helpful" predators), food for comfort, sex, drugs and alcohol. Also, when children feel lonely,abandoned, afraid, sad and lost then they usually act out in ager,resentment and rebellion. This can intensify with the special needs that she deals with.
Oh..I sooo hope your friend comes to a better solution to their debt dilemma.
Good luck and best wishes!!