[benj111]

Agreed, although I'm not sure I'd echo your thoughts on the engineers.

My Aunt is in a wheelchair, and it's notable just how much of the world is cut off. One step renders a building inaccessible. The nearest analog most people get is probably pushing round a pram, but try doing that without lifting the front wheels off the ground.

Unfortunately it's a hard problem to solve. You have many different demands on the streetscape and there's so much legacy infrastructure.