I think this is a great idea that needs more work to be fully viable; I think the gold in this idea is in the companion interactions. I would put more energy into that specifically.

inform caretaker of conditions of patient, (demo troubles but sorta worked), watson to analyze how patient responds, user purchases app. companionship "alexa is rose's friend".

Drug reminders and sentiment analysis. Clever use of sentiment analysis for utilization and patient health.

Interesting idea. I like the customer acquisition strategy of going after senior care facilities. I think it will be important going forward to try to get pilot projects with some insurers.

Great work. My only concern is UX for the elderly.