Streetlife

Does anyone knows how often should be lawn mowing? My is mowing more than 3 times a month. Even now when the grass has not grown since last mowing they cutting cute daisies around . They doing more noise than really be useful. It's making me angry because i pay enormous Service charge every year. They are useless right now but when the Autumn and Winter comes and the leafs and the snow start to fall nobody comes and remove it from the pavement.