I can't stand the water drinking. I recently had two Sims out on the campus grounds in Uni, having some fun, and I was focusing on one of them for a moment, went to check on the other, and she had gone all the way back to the dorm for a glass of water. Seriously why?! Why is this a thing? Why was this ever patched in? It's not "immersive", it's not "cute", it's not entertaining, it's not gameplay. It's not even realistic because the behaviors make no sense. It's disruptive and wicked annoying. Why can't they drink water when they sit down to eat? ... Oh. Maybe it's because they don't "sit down" to eat half the time.
Just get rid of this "feature" altogether. Or give us more autonomy control, like a panel for toggling off small excessive behaviors like phone use, water drinking, etc. Better yet, is there a reward trait of "never thirsty"? I never use rewards, but if there isn't one, we need one pronto. I'll give it to every single one of my Sims.