No. They simply have found too many caps without the rest of the bottle littering the world, and they are harder to find and pick up than full bottles. I haven't seen any research as to why that happens, as I don't think there's many people throwing them separately, but if I hat to guess, I would assume loosely closed bottles thrown anywhere end up loosing their caps through friction or pressure. By keeping the bottle and cap tied, this stops being a problem, and worst case scenario, cleaning efforts for littering are easier to die to the whole bottles being easier to find and pick up.
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u/sisdog 3d ago
Do people have an issue of losing the cap to their water?