Just like none of them have changed their car radios from the Russian factory default setting of 'generic trance music'.

Fro cheap cams, it's a slight PITA to set the date. For one I know of, it forgets the date if it loses all power, and the date is set by putting a special text file in the root directory of its storage.

Everything interesting seems to happen right after the UNIX epoch.

Or if you're in America, right before :)

It'd be funny in Back to the Future if something reset and Doc and Marty went back to December 31, 1969.