There was no real fringe theatre in London until way after the war, so either a play was done secretly with a club licence or it was done openly and had to be assessed along with everything else.
The newly decorated theatres produced things like car parks and restaurants, so you could have a good night out, quite cheaply without all that bother of having to go somewhere else.
The Long and the Short and the Tall made a great impression on me because it was a very ugly tale about the reality of soldiering at a time when we were being gung-ho about the whole thing of war.
The classical writers... playwrights, Jacobean, Elizabethan playwrights, all showed areas of all classes and how they live and painted them pretty authentically.