Multiple things:
- pharmacists that work in retail have to deal with rude customers all day. They also have to deal with providers (NP/PAs) who have no idea what they gave and they always have to call back the provider to clarify what dose, drug interactions and hey why are you giving this medication, the patient is already on a different one but same class etc. because they lack basic knowledge of pharmacology. The pharmacist also serves as a safety check so they dont give out medications improperly.
- retail pharmacists get paid like shit
- overall heathcare workers are burnt out and quitting anyway
the /r/noctor subreddit is a great source of examples for the above