I'm a pilot. Not a commercial pilot though, so I don't know more than most people. But here is a thing.
I was very recently on an EasyJet flight. I'm not saying which one.
Mid-flight, the captain left the cockpit to use the loo.He then went back in
A while ago, another captain left the cockpit to use the loo. His co-pilot locked him out. Everybody died in terror and panic.
As I say, I am not an expert, but EITHER the pilot can get back into the cockpit, in which case so can anyone else, or the co-pilot has to let him in, in which case the same tragedy can happen again.
Care to comment, EasyJet?
I know the answer to this possible problem is to install a loo in the flight deck. I also know that airlines will do ANYTHING to get an extra seat in an aircraft because this means more money.