Changing Tyres

Some brands are committed to making things easy for you, without taking the pleasure out of owning and driving an automobile. Changing tyres for example. It is a simple thing that keeps bothering me.
If a manufacturer, for example, has already found a way to make life easier, why don't all other manufacturers follow suit?
After noticing a flat tyre, normally, you fix the jack and pray that you have placed it at the right spot and haven't managed to damage the suspension or any other critical part. Especially so on slushy/wet roads when you aren't particularly keen to go down on your knees and peer under the car.
Well, BMW and Mercedes have gone ahead and made it simple. And they have for a number of years.
Look closely under the doors near the four wheel arches and you will see circles with a key hole (it's exactly that, a key hole) on BMWs or small rectangles (Mercedes). When you notice a flat, you take your car key, twist the circle out (or pry the rectangle out, as the case may be), insert the solid rod of the jack into the opening and just wind/pump the vehicle up. The four optimum spots are designed into the side skirts to help you leverage the car up precisely, without damaging the underside or the suspension bits by a wrongly placed jack.
So no crouching or peering under the body. No stress. Just a simple, clean way to jack the vehicle up.
Simple ideas are difficult, but how difficult is it to incorporate this simple idea on all vehicles?