That's true and lawns are a particularly American obsession - and I will say obsession...people want theirs to be the greenest, thickest, most luxurious looking and they study and pay for grasses, fertilizers, etc. and all at what expense to the environment...it's frightening.
That's why I liked England. Hedges formed natural fencing for farmers and their herds, and most of the grasslands were functional. People have very small lawns there- but large gardens for vegetables and flowers. There's even a movement to plant grass or some kind of green matter on rooftops to cut down on greenhouse gases.
I can get zoned talking about this stuff...
*In terms of lawns, I just meant I like the walking and watching the rows appear as you progress- vacuuming serves the same function for me- but I can't do that outside.