A mass market automated pill dispenser you can just dump your prescriptions in seems like an obviously viable product. But, building something that’s easy enough to use, reliable enough to be safe, and cheap enough to be affordable is a pipe dream.
However, pills are of wildly different shapes and sizes, which invalidates most of the seemingly obvious sorting solutions. Prescriptions can also call for multiple pills in the same day.
I think the main weakness is that for a few folks, medicine changes would be difficult because they often are mid-week or mid-month and for some, they would really need their medicines re-packaged. I'm not sure this is as big of a problem in nursing homes and whatnot because the nurse is dispensing the meds, while some folks at home have bad memories or the beginnings of undiagnosed dementia and just won't remember.
Though the number of old folks is getting larger, so maybe that's a market by itself.
I know for a fact that my parents and my wife's parents would all love this.
My mother was a nurse, so she handles it better than most, but she still spends an hour a week on it.