That being said, exactly 0 of the listed examples are actually bad to consider free. If you don't collect rain coming down, it'll just come down anyway.
Sure but people also need to eat.
Water is not free.
In Australia for example there's a practise of "flood water harvesting" where you build large earth walls along your property boundary, and collect all the water that falls on your land. Combined with irrigation downstream this means the river dries up in the space of a hundred kilometres.
There's very little water released back into the river, since that's basically wasting water as far as the agriculture industry is concerned.