Re: Somebody please stop the planet...
"Why not just allow 8 digit pins?
Or has the general public became so dumb they can't remember 8 digits in sequence any more?"
I don't think the general public is too dumb to remember eight digits - but I do think some members of the general public are probably too dumb to be sensible about those eight digits in the first place, and you'll probably get people using the last 8 digits of their phone number backwards*, and stuff like that.
* This is already common in four digit pins for house alarms, based several I know. (Which, arguably, I shouldn't know, but that's a whole other problem!