Depends on the object, but overall, its true. We have a lot of stuff that the future might not understand which will give them something to research. Take our penny for an example. Those might be scarce if we ever stop using them, therefor a historical piece for the future.
okay since the pple don't want a king maybe they should come up with a constitution and make rules that suit and benefit every citizen in one way or another and maybe appoint one person to be in charge of the constitution