It is not an "edge case" in a development for 55+s. And, with the shifting economic, we will soon see a great many more seniors growing old in condos rather than detached houses.
To be fair I don’t know how often elderly care workers are going to 6 different locations in a single day, but it’s hard to imagine it’s a very common thing. If there’s a large condo with lots of residents wouldn’t it be more efficient to hire a permanent employee?