The question of food/drink in the library is sort of a Catch-22. Such as if you allow drinks, patrons will be more likely to tell you if there's a spill. If they're hiding a drink, they're not going to tattle on themselves.
We don't allow food or drink, mostly because we don't have a space for it. We're cram packed and a spill could do a lot of damage to materials.
But even though there's a ban, you haven't lived until teenagers arguing over a bottle of water ends up with two teens landing on their rears on the floor and water sprayed on a floor to ceiling window. If I hadn't been so mad at the time, I might have laughed.
And a big welcome to all the new folks!