I know full well. I also know that if my mother were that ill, I would be driving her where she needed to go and pushing her in a wheel chair in and out of the building. And before she died, I did. A priveleged parking place was not be needed.
The few feet saved in a parking lot is almost always far exceeded by distances within the building itself. If someone can walk within the building, they don't need the special parking place, and if they require a wheel chair, it's perfectly easy to roll it a few feet farther, particularly those electrically powered.
There are people with conditions that involve situations other than what you have laid out in your posts. I'm not sure why it's difficult to understand how without such spaces--which in some people's experience are rarely full, but in others' often are--travel to & from various places of business would be impossible.