Vancouver has banned doorknobs through it's building code. The motive is for greater accessibility. And I can think of several reasons why levers offer a lot more affordance. Elbows, forearms, feet, items gripped in a hand, butts can all be used to open doors with handle knobs... but that is or will be discussed. I recommend this fascinating article on the topic.

Vancouver’s ban on the humble doorknob likely to be a trendsetter

Vancouver has banned doorknobs through its building code. The motive is for greater accessibility. And I can think of several reasons why levers offer a lot more affordance. Elbows, forearms, feet, items gripped in a hand, butts can all be used to open doors with handle knobs... but that is or will be discussed. I recommend this fascinating article on the topic.

Vancouver’s ban on the humble doorknob likely to be a trendsetter

Vancouver has banned doorknobs through it's building code. This article is fascinating. The motive is for greater accessibility. And I can think of several reasons why levers offer a lot more affordance. Elbows, forearms, feet, items gripped in a hand, butts can all be used to open doors with handle knobs... but that is or will be discussed. I recommend this fascinating article on the topic.

Vancouver’s ban on the humble doorknob likely to be a trendsetter

Vancouver has banned doorknobs through it's building code. The motive is for greater accessibility. And I can think of several reasons why levers offer a lot more affordance. Elbows, forearms, feet, items gripped in a hand, butts can all be used to open doors with handle knobs... but that is or will be discussed. I recommend this fascinating article on the topic.

Vancouver’s ban on the humble doorknob likely to be a trendsetter