There are plenty of businesses that become less relevant through no fault of their own (see 'buggy whip manufacturers'). That doesn't mean they require subsidie

There are plenty of businesses that become less relevant through no fault of their own (see 'buggy whip manufacturers'). That doesn't mean they require subsidies - it reminds me of Clevinger's father (?) in Catch-22 who made his fortune not growing parsley, investing government subsidies into buying more land on which to not grow parsley! But the USPS is a good example of a point I've been lingering on since making my earlier comment - at what point does something become a basic right (or expectation, to prevent confusion with the Bill of Rights) in our society? Is postage a basic expectation? Is a home town newspaper a basic expectation? And if so, should we expect our taxes to subsidise them as we do with roads or healthcare?