Perhaps I would get a kick in the rear from Alitalia, however, I NEVER stated that I travelled with all the airlines that fly to Europe, I have flown Ryanair, Air France and EasyJet without issue apart from the first time with Ryanair as stated above. As for the others, I have no idea. Though for anyone wishing to fly without a passport to Europe, I would recommend calling the relevant airline in advance to enquire if they would permit it, this way you do not encounter any problems.