Cats are supposed to get the vast majority of their water intake from the food they eat. Kibble alone is obviously less than ideal. A cat that drinks a lot or at all is already severely dehydrated.
Kibble does however keep their teeth cleaner as they would no doubt be chewing on or eating bones in the wild.
I feed Purina Pro Plan in the cans, lots of fresh meat and offer kibble as a snack between meals.
Unlike dogs, cats are truly carnivores and in a perfect world they would not get any of the garbage additives and grain fillers found in the vast majority of food.
Another cause of urinary track issues is salty type preservatives. Cats and all animals need minerals but often dry food has a way too much and it ends up causing problems.
https://pets.thenest.com/salt-cat-fo...bad-10443.html