Just had a thought why couldn’t each aerobridge have a set of pitot covers attached with a bungee, so that the engineer applies the pitot covers and the aerobridge on retraction removes them?
That would not work for lots of reasons.
There is a system in place but it was not followed. A ground staff member, or engineer does a final walk around to check panels are closed etc before putting on the headset for pushback. At that point the covers come off. I have been known to stick a piece of paper over my PFD that says PINS when we tow or do something out of the usual sequence and a nose pin has had to go back in after I have walked around.