Looking at the 1978 subway map[1], I better appreciate the improvements since. It seems less daunting to someone who's never visited NYC yet.
[1] https://www.nycsubway.org/perl/caption.pl?/img/maps/calcagno...
[1] https://www.nycsubway.org/perl/caption.pl?/img/maps/calcagno...
https://www.nycsubway.org/perl/caption.pl?/img/maps/system_1...
https://humantransit.org/2013/11/should-transit-maps-be-geog...
> The geographic map helps you locate yourself and points of interest in the city, but you need the structure map to understand how the system works.