Doing things in public and sharing in things with others, such as going to movies, plays, concerts, lectures, etc., is so much better than doing them by yourself because instead of enjoying these things solitarily you can enjoy them together. You can observe others’ reactions to things, which might influence your own reaction, which I suppose can be either good or bad. But there does seem to be something of value in sharing moments and experiences with others rather than just by oneself.
The other thing of value about going out into the public is observing others and realizing the connection between yourself and people and things around you. Something as simple as going to a coffee shop and seeing familiar faces that you often see there and observing them each time you see them can help construct a little world in which you live and experience the familiar – perhaps these people were once strangers, but by becoming familiar they become part of your life.