I can imagine the elderly gentleman in 1978 seeing that ad and thinking to himself how complicated trucks have become with this fancy electronic ignition nonsense and fancy suspension.
New vehicles now are really not that complicated nor hard to work on. Those who are growing up with what we have understand this world, especially after doing a bit of homework. Realistically with the way the internet is now and the resource available to genZ, there is really no excuse to not understand the current batch of available vehicles.
I think most of you guys here on fabo are baby boomers and understand 60s and 70s better than anything else but really the new stuff is just different, not really much worse or better, just different.
Decades from now someone will be sitting here talking about the good ol days in the 20 teens and 20s.
For now, you old guys should just savor and enjoy tuning your carbs. History is just an old broken record and it's going to be the same story over and over until the end of the universe.