Mail is not required to be delivered everyday.
Well... Multiple entities send me mail such as bills that barely get here in time to be paid on time, the way it is now. This is not really USPS’s fault - some of these places just don’t allow enough time between the bill’s mailing and when payment must be received.* Most of these I have no choice but to deal with. (It’s pretty hard to say “screw you” to a utility, or a relative’s care facility when it’s the only option in the area, for example.)
*It would help somewhat if ALL bill payments were required to be considered as “received” as of the postmark date (with USPS also being required to always stamp a legible postmark!!!)
E-mail is not an answer - my volume is so high already (just the legit stuff!) that it’s way too easy to miss a billing. This is not to mention the security concerns, what with average people not really password savvy, and such.
Much legal / financial stuff MUST go through the (snail) mail, too, and here again, in assisting my Mom with a recent (big) problem, we ran into situations where documents sent to her had to be turned around literally next day. This is clearly unreasonable on the part of the sender, IMO, but, there’s no good way to fight it...