I think that we should have both available. There are those nights when I don't want to be around a lot of people, and would rather eat a private dinner with my family. However, I also think that there would be those that do not have family with them and would want that social time. Besides, if you are working on some big project and only have time for a quick bite, running into a cafeteria is exactly the right thing. You can grab what you want and get back to work without having to take the time to make stuff yourself.