Yeah its hard to get folks to come into the modern age of computering. FOr some reason there's tremendous resistance to abandoning the old crusty buggy solutions (indexes and handles that collide and need remapping) and using stuff that just works (identifying everything immutable with a uuid). Folks say 'its too many bits' and 'it takes too long'. Then they proceed to write megabytes worth of patchy code to try and save 64 bits worth of identifier.