I’m going to go off on a limb here and assume that even in a world were families send their ten year olds out into the woods to trap/dogfight wild animals, leaving random doses of medicine all over the place would be seen as unwise.
With that in mind, I declare the Alola region (in addition to every other region in the Pokemon world) to be practicing unwise medical policy.
All over the place you can find potions, super potions, burn heals, antidotes, etc… Other than the fact that children can, and are, picking up these drugs and self medicating in likely incorrect doses, aren’t there expiration dates for medication?
Surely a syringe of what-have-you likely won’t last as long when it’s sitting out in the middle of the woods, or a field of flowers, or in the mud at a ranch.
…but what do I know? I’m not a doctor.