Normal. Snakes have a very good sense of smell...he'll find the water bowl when he wants it...probably at night when you're not looking & he feels safer.
Snakes don't drink constantly, so don't worry. But next time you handle him you might tip his face to the water bowl & see if he's interested...he'll probably
just think you're a "helicopter parent" LOL! And there's nothing wrong with asking questions...it's only silly if you DON'T ask. Snakes are different from
other pets & there's a lot to be said for experience...you'll 'get there'.