Sorry to add one more comment about baggage. I haven't flown for years now but I remember 30-40 years ago the size standard was enforced, at least at my local airport CYYZ. There was a metal rectangle representing the width and height of the space under the seat and, if your hand baggage couldn't pass through it, you had to check it in to the baggage hold, even directly from the departure gate. Was that not universally enforced at that time?