Why are male bikes made with horizontal rod when it’s hard to jump on and easy to hurt yourself falling over…?
The reason WAS stability, but nowadays it is simply history and uncosideration. 
The female bike is just as stable as the male bike, and the price is equal.
Yet history holds on to the male bike while causing men trouble.

Same goes for buildings. 
We build beautifully, but history holds on to construction, and bodies could be a lot more welcomed.
It does not have to be more expensive to ‘build for bodies’. 
It’s just a different way of building.
To make life better.