if the nut people pre-board to wipe down the plane, is there anyone onboard to make sure that they actually do this ? Sure, all the FA's are busy enforcing overhead bin usage, hanging coats, greeting pax with a scowl and making PDBs, but who will enforce the wipe down ? And what if the nut people use a cleaner that causes distress for those with chemical sensitivities ? Should they be pre-boarded too ? And who will monitor them ? And what about the people with emotional support animals ? They should be preboarded. and people with children. And the elderly. and people with limited mobility. And elites. And people with low credit scores. And the Dutch. Pre-boarding for everyone !