A lot of people actually like it - they like to have a well kept lawn, and if they want to use their time or money to do that, why not? But I don't like that you're expected, if not directly asked to, to keep it as society wants it to be. However, I can understand that the bank is concerned about the value of the house if they're financing it.
Personally I'm looking for a house well outside the city and any far from busy roads. Lots of land and I can have the wild nature I love and grew up with. I can't think of anything that'll calm me down and unwind like a walk in the nature does.