Question

why do you think there are so few cases of private water supply in the world?
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Answer 1

Answer:

There are very few cases of private water supply in the world because water is an essential amenity. Water supply is a public facility that every government must provide to all citizens of a State. Hence, it has been deemed best that the government must handle water supply services.

Answer 2

Answer:

there are few cases in water supply in the world because the water is an essential amenity. Water supply is a public facility that every government must provide to all citizens of a State. ... Hence, it has been deemed best that the government must handle water supply services