How are the people who are not born going to pay the currently existing for their use of infrastructure you suggest we wholly pay for now?
Most people accept that we don't owe the debts of our ancestors, but for some reason, the most corrupt organizations somehow get a pass. A baby today in the US is born owing north of $40k to banks she has never done business with. If she does not like it, that money will be taken with the threat of force.