I take that as a possibility, but not a given. And even if it is a given there’s nothing to say a better, more efficient system couldn’t be employed. For examp

I take that as a possibility, but not a given. And even if it is a given there’s nothing to say a better, more efficient system couldn’t be employed. For example, current day drones would excel at rural mail delivery. Bread and butter business opportunity for someone so inclined. Just because one method is removed does not mean the product ceases to exist. If it’s valuable a provider will find it.