It's probably not universally necessary to jaywalk. However, I am against this on the grounds of logistics. I understand and accept the need to have a license and display an identifier while operating a vehicle, but I think this would be an extreme requirement for people walking around (and possibly unconstitutional in the US?) And without this identifier, how will the system know where to send the citation?

All things being equal though this doesn't even sound inherently bad. If every jaywalking infraction was cited we might democratically re-decide how much we want that law to be on the books.