If the alternative were to dump the waste into the commons, like cars do, why not? These days we have better ways to deal with wastewater and garbage, but cars

If the alternative were to dump the waste into the commons, like cars do, why not? These days we have better ways to deal with wastewater and garbage, but cars are still mostly allowed to externalize their negatives without a second thought. Although admittedly we have come a long way since the really crazy days.