they do not produce anything pleasant and long-lasting, long-lived, that can be passed on to your children and grandchildren.

if they are stupid enough they can make post that will last for decades as part of their digital footprint especially the dumb and the embarrassing one.
!LOLZ

but yeah things hits differently now unfortunately.
I wish I was able to save some of the stamp back when I was a kid, but I have no one to send the letter to back then. not even my father, nor my illiterate grandfather. !LUV

You certianly have something to pass on for the next generation, a glimpse in the past, especially the from a country that no longer existed.