I want to build a robot that h

I want to build a robot that helps dispense pills. I know a lot of elderly who often forget to take their pills, or take too many because they can not remember if they took them already. When someone gets new pills you pour them in to the container, the robot would have a scanner on it and would be able to read the label and figure out how many pills should b despense each day and how often. It would them dispense the right amount of pills through out the day. even going so far as to walk/roll over to the person and offer them their pills. Because it can read the amount of pills to be dispensed it would also be able to let the person know when they were going to need to get refills, maybe even message the pharmacy to arrange refills by its self. And because the elderly are often lonely I would like to make the robot have a soft fur patch so they can sit with it and stroke it and have it pur and respond. Studies have shown that having something to stoke can often lower stress and help with depression.