People with dementia and incontinence often get these. Even if you get enough water into them, their systems don’t always fully empty, they are sitting in a wet diaper before it’s realized, and theyir immune systems are in bad shape. And so their dementia gets worse due to all the undx’ed utis.
Also, as we’ve noticed with our elderly parents and acquaintences, for some reason hygiene isn’t what it used to be. They seem to be afraid of showering and bathing. And with arthritis impacting joints sometimes it’s tough to keep clean. “Clean” is critical for avoiding UTIs.