With what? Electric trains? I'd love it if there were enough electric trains that I don't need a car, but trains will never go as many places as cars do so they

With what? Electric trains? I'd love it if there were enough electric trains that I don't need a car, but trains will never go as many places as cars do so they won't 'disappear almost completely'. It will be sufficient if they are reduced by 75% and are electric. Part of this reduction will result from shrinking of the global population.