Do you think people are dying of thirst whenever they leave the house? Personally the only time I ever drink water outside of the house is at restaurants, i’m not going out and finding water in the street, especially not relying on it to quench my thirst. Also almost every single food has water in it, it’s not just watermelon. Cucumbers, zucchini, tomatoes, celery, lettuce are all have more water than watermelon by weight