That's true to a point. The point being when all writers of cursive have finally died out and only the historians can read cursive writing. The general populace would not be able to read the Declaration of Independence and other historical docs. It would be as big of an enigma as the Babylonian writings in clay tablets................
Hardly. One, cursive isn’t so dissimilar that someone with a lukewarm IQ can’t figure it out. Plus there are cursive fonts that you wouldn’t even need a room temperature IQ to use as a comparison. Cursive documents are never going to be hard to decipher for anyone who can read print.