Stop in for a cup of coffee

I wonder if it was done as just a way to make people drink more water... or if they had a specific health benefit in mind... or the age old saving money idea, much like watered down whiskey lol. Or all of the above...
Did it in wrestling too. Gatorade is great if you’re low on nutrients but the big advantage is that it’s sodium level is such that it makes your body absorb water but it’s really too high for most people. So cutting it with water does a few things, increases the water available to be absorbed but reduces the sodium levels. Plus it helps stretch it to make it go farther. Which is why I think the military ultimately diluted it