I work at an agency that used to have an office bistro for breakfast/lunch. We moved to a new office and lost the perk because it didn't have the space.

Now people just sit at their desk and check Facebook/reddit/etc over lunch — or they break into cliques. As a junior employee, I found that free lunch leveled the playing field. Senior managers couldn't hide out with only other senior managers when you all eat at the same place.

They say that the family that eats together stays together and I think that's just as true for work families.