My father bought a ticket through Ryanair online directly from their website.
On their website there was an option to pay 7 euros to check in online or to check in at the airport for free. He chose the latter. He went to the airport and then he was charged about 56 euros just for checking in! What's the purpose or excuse for such a ridiculous fee? And what's the excuse for having a check-in fee in the first place?
Also, I see no reason to need to have any check-in process in the first place. If you are in the plane on time you fly, if you are not you miss the flight and that's it.