Correct. You also have to be there because only the person with the doctor's recommendation can accept the delivery.
And I understand the part about too many choices being overwhelming. My dispensary has 30-40 varieties and I often just stand there and stare at the board.
But, probably not a service I'd use. I have several convenient choices on my way home from work and being at home for a delivery is less convenient. But I can see it being very beneficial to people that might be home-bound and need their medicine. Best of luck.