Because they need to know who to target ads for gutter cleaning systems and fat man t-shirts.

This is apples and oranges.

The shop has experience. They know it’s very probable it will break. They didn’t pay for the lesson, but you will pay for their experience. Get mad at the engineer of the phone not the repair technician.

You’ve got a better mechanic than me I guess. If you bring in an old shitty car for repairs you can expect more than one thing is in bad shape.