All things being equal having clean waterways is better than hsn dirty ones but this doesn't really seem like a priority. Plenty of cities just don't have the c

All things being equal having clean waterways is better than hsn dirty ones but this doesn't really seem like a priority. Plenty of cities just don't have the climate or geography to make this possible and plenty of people can't or don't swim. Arguably NYC is very swimmable since it's mostly on islands but the waterways are fairly rough and very wide and result it at least a few drownings every year.