A World Without Doorknobs?

The city of Vancouver is banning doorknobs in new construction:

In Vancouver, the doorknob is heading into a setting sun. Its future has been date-marked, legislated out of existence in all future construction, a tip to society’s quest for universal design and the easier-to-use lever handle.

And as it goes in Vancouver, so will it go in B.C., Canada, and perhaps even the world.

So here’s a question for our developers out there – what percentage of your doors have handles vs. knobs? If this type of code were to be implemented here what kind of impact would it have on multifamily developments?