Most likely the latter, based solely on price.
But even a five year old can understand “use this charger/connect and it charges fast, that other one is very slow, and this one doesn’t work.”
It’s way more annoying to the parents.
It's funny to consider the layers upon layers of abstraction modern children are taught as common sense. Putting water in a container is one thing, but charging a battery must be downright metaphysical at that age.