Irrelevant. Child support is not alimony, it’s to make sure your offspring has the the best opportunities the parents can provide. What’s more, it does factor the relative incomes of the parents. The parents poor decision making with their own life shouldn’t burden that of the child (already starting at a disadvantage in most cases). Nor should the parents poor decision making burden everyone else. It’s not like you don’t know the potential consequences to sex. Show personal responsibility like an adult and do what it takes to make sure your offspring have a better life than the miserable one you choose. In most states, jail for delinquent child support I the last resort, after multiple contempt hearing and usually several years of non-payment. It’s not like you miss a payment and you are jailed. It’s also incredibly amazing how often the jailed person miraculously has the money to come current on payments and get out, despite their claims of being broke.