#Accounting, #SlideRules, #penmanship, #shorthand, #typing, #telegraphy, and #carpentry were taught to school children in Burma, well into the 1980s. I think it would be socially beneficial to teach these skills to young American kids, today.
Basic accounting and personal finance are useful skills for adults, and indispensable for college kids wielding credit cards.
The slide rule endows the student with a keener understanding of various functions and, more importantly, always to check one's results, mentally.
Being able to write in a beautiful, cursive script with a fountain pen may now be but a party trick, but it still is an important social skill.
Shorthand offers a massive advantage in note taking. Given that every child learns to type social media posts well before they first learn to speak, proper typing technique should be taught to children, for efficiency, for preventing repetitive stress injuries, etc.
Telegraphy is valuable in aviation: VOR and NDB navigation aids transmit their identifiers in Morse code. And Morse code is still a thing in the amateur radio scene.
Teaching kids basic carpentry, like making a rough table, is of limited utility, but they will never forget that experience of making something out of raw materials.
Above all, these old skills are cool, at least in some circles. And if nothing else, these activities will surely keep them off social media.