Because the people who own those planes, and people who regulate the airline industry don't want human casualties under their watch - a fairly reasonable concern.
Status-quo is not something you typically argue for, its what you need to argue against. At which point you need to make a positive argument with data that can convince them otherwise.
Status-quo is not something you typically argue for, its what you need to argue against. At which point you need to make a positive argument with data that can convince them otherwise.