It depends on what your goals are. We had similar volunteer programs where I grew up. Things were clean enough, but the classrooms were still a mess, and people

It depends on what your goals are. We had similar volunteer programs where I grew up. Things were clean enough, but the classrooms were still a mess, and people still threw their trash away on the street for the volunteers to pick up. For Americans that have never spent time in Japan, Korea, or Switzerland for that matter, they are nominally clean in a way that is rare-nigh-on-extinct in the US. In Japan, seeing trash on the ground or graffiti are both very uncommon. Moreso now than when I moved here a decade ago, especially in Tokyo, but the toilet at my local public park is cleaner than the one I last used when I visited a hospital stateside. The problem with volunteering is that you only get volunteers. When everybody grows up learning that community care is their responsibility, and not just "somebody else's job", there are some big benefits to a society as a whole.