As I said, the Right Seat of an Airliner is the biggest revenue generator of all the seats onboard. Why would you remove it? youngsters are paying €30,000 to sit in it, therefore it is revenue positive at €33.33 euros an hour. (if 900 hours are flown and there is never ending number of candidates). Rather than a cost to the business if a qualified co-pilot is employed, with taxes and social security costs, only if this was mandatory would there be a requirement to engineer the aeroplane fir single pilot operations.