> Now consider the rest of the world. The large majority of people for whom quitting for moral/ethical reasons means a significant risk of your kids going hungry.

There is only one logical conclusion: don't have (any more) children. If you don't have children, consider not having any children. If you do, consider not having any more.

If the society as a whole doesn't want to pay for the cost of raising a child, why should you grind your bones?