The importance of continuous service must be underscored. In an urban environment, people should not feel the need for a car ; that requires evening and night service. Even if they are less frequent, or of a different kind. For example the Paris metro shuts at night, but this is compensated by a night bus service, the Velibs, and taxis... Whereas in many provincial towns, going out for the evening means needing a car. And once it's there, it begs to be used...

Un roi sans divertissement est un homme plein de misères