I've had neighbors who would cut the grass and plant flowers in the common areas around buildings. They didn't have to, the building could've hired a gardener but they did it because they enjoy it. It's like if a Czech doesn't have a garden of his own, he'll find one or improvise, any excuse is good to put on Wellington boots and take out the gardening tools: cut grass, plant, dig holes in wet soil. I think everyone on my block owns a lawn mower, at least a small, hand held one and has a garden, even if it's just one on the balcony, where they cut the grass..
Judging by the number of times I hear a mower, trimming the lawn must be Czech Republic's favorite pastime. Besides beer drinking, of course.