Comment Lack of child care easiest to fix. (Score 2) 212
Of the listed factors (lack of child care, early retirement, incarceration and substance addiction) the only one we can easily handle is the lack of child care.
Child care is ridiculously expensive, in part because of insurance and regulations. Many state regulations limit it to no more than 4 or 5 children per worker, which makes the labor expensive even though we underpay them ($12/hour is common). $12/4 kids = each parent paying $3/hour just for the labor, not including rent, supplies, and of course, insurance. Insurance is high because of the high value we place on the children.
So the solution is to have either local governments or large businesses supply the child care. In those cases, they can self-insure.