They can click everything away, so maybe educate them or buy an ios device for your relatives instead of breaking computing for everyone else.
Fair, but remember that we are the <~1% of people who even know what webusb is. I'm not sure I share your view on this.
Maybe an about:config switch to enable it would be enough to stop casuals from pwning their peripherals.
> They can click everything away, so maybe
So maybe don't populate the browser with dozens of features requiring permission popups?
> breaking computing for everyone else
How is not implementing a Draft spec, which may compromise security badly, breaking computing?
Overreacting much?