The pharmacy is two miles away. That is not the problem. The problem is standing in a queue, walking three aisles for supplies, carrying a bag to a vehicle and doing it again at the next stop.
Jomia's errand service builds the whole route around the rider's energy. The driver parks close, waits during each stop, carries what needs carrying and gets everything home in one journey.
Riders decide how much they want to do themselves. Some want to browse the aisles; others want to stay in a comfortable seat while the driver handles a counter collection. Both are fine.