I've dealt with customer service in every roll I've had for over 30 years, be it cashier, tech support or designing & developing software systems for clients.
People want easy. One and done. No issues.
That's not how life works either now or ever.
While you're saying the catch phrase of "the onus is on ..." you're ignoring that the job is two sided. YES, it takes you to notice the error and call it out, it's always been this way. Don't expect your minimum wage cashier to watch the numbers as they ring, that's your job. Likewise, if the Amazon system messes up it is your job to catch it and draw attention to it.
Not sure how old you are, nor do I care, but classifying those who love automation as "young people" is adding to a divide we don't need. I'm not old, but certainly not young and I LOVE when I don't have to deal with a human at checkout.
HOW DID WE GET ON THIS TANGENT? Disney is not automating much of anything, and when they do it takes a small forever for them to roll it out.