Stand in any airport departure terminal. Look at the number of people lining up to check in.
There will be a mixture of men, women and children. Adults of all different ages.
Out of all of those people how many do you think knows or cares what the manufacturer of the aircraft is that they are about to board?.
Not any little kids, that's for sure.
Not any old lady. Any young lady?
Unless you ask, you're not going to know what that airplane you are about to board is going to be, are you?
It's never written on the ticket is it? Except for maybe Concorde.
It would a good idea if somebody were to survey passengers at an airport and enquire if they know which type of aircraft they will be flying on, and if they care whether it is a Boeing or and Airbus.