Then, when labour commences, two midwives on call arrive and stay for as long as it takes. Sometimes their shift ends and the next one comes in, exact same as the hospital, but the tax payer isn't paying for that bed, that food etc. win, win.
And, should something happen to go wrong, the midwives make the call, the ambulance comes and in the meantime they have enough equipment at the home to make sure everything is ok.
I have a hard time seeing the down side to their system, to be honest.