Interesting thoughts terry... what is also interesting is that some of those are still in wide usage and not going away. The entomology may be lost on the younger generation but the common usage remains. Examples:
”hang up the phone”- still very very common. Although kids dont really know where it came from its still a very common phrase for ending a call. Kids will even say “you hang up first”
“Drop a dime” still very common, even used in modern songs, to describe snitching. Im in my mid 40’s and pay phones have been gone at least half my life. Even when they were around they cost .25, not a dime, however that common usage is still prevalent.
“Rewind”- still universal as well. Why? Be ause evem though videos are digital devices like tivo and other dvrs (digital vedo recorders) use a “rewind” button to go back on action. That phrase isnt going anywhere either, although again the origin is likely lost on anyone under 30
i think your post speaks a lot to the evolution of language and common usage of words. We offen say things that have an understood or common meaning wothout understanding where it came from. We live in a unique time with technology driving so many innovations that we are, in a very real way, seeing phrases become outmoded from a practical standpoint but stay around because of common usage.