I’m one of those people. Plain water just doesn’t satisfy my craving most of the time.
Especially in hot weather when im active I can literally drink myself sick on “plain” water and still feel the need to drink more.
Add just about any type of flavoring (even in less than recommended amounts) and suddenly I can drink reasonable amounts of water and feel satisfied.
While electrolytes definitely help, it’s literally any flavoring. And again even with tiny amounts added (think hints of flavor) I’m good.
I used the hot weather drinking to simply emphasize. Even in cold weather plain water doesn’t usually satisfy the craving to drink for me.