Eventually the old manual transmissions will only be on collectible cars. Just like carburetors manual transmission are destined for the junk heap of automotive engineering. At one time auto trans was an expensive luxury option and was though out of most of my life. Fuel injection was at one time an expensive option along with power windows etc. Now EVs will have no shiftable transmission except throwing the motors into reverse. Electric vehicles are not only the future but more than likely the immediate future. It won’t belong before EVs dominate the roads and gasoline operated vehicles will go the way of the high buttoned shoe. In fact one may need a special permit to drive one especially here in California.
Yes there will always be collectors of old cars just as they are now. In the not so distant future young people will be fascinated as to how those old fuel combustible engines work. Just think a 2020 gasoline powered Mustang or Camero will something only seen at old car shows and old car auctions. Things are changing at an ever faster rate everyday. So if you have an old manual drive rig hang on to it to show to your grandchildren and great grandchildren. They will be impressed even if they are not old car hobbyists. Only the daring will attempt to drive them. Talking about learning how to shift with a stick? This upcoming new generation will not even have to learn to drive period. It’s the near future and no one can stop. However we can all reminisce. That’s all one can do in a fast moving society of change.