Has Everyone been There and Done That?
Why do flight attendants go to the trouble of filling a cup for a passenger when they could just as simply deliver them their can and avoid wasting any time in the process? Were you quite certain that you had been led astray into believing something that was not the case?
To put it another way, it’s just a matter of good manners, and it’s also a wink and a smile to the good old days. If this is the case, all you have to do is mention it to the flight attendant when you check in and let them know you want to pour your own drink. Do you agree that it’s beyond comprehension?