Surprising how many morons are employed to fit tyres, most of em have no knowledge of bike tyres & rims & discs & how easy they're damaged.
Hardest bit is breaking the bead without a bead breaker, 2 G-clamps & 2 pieces of wood never fail.
I've probly fitted thousands of tyres in the last 40yrs working in dealerships, many of em being bike tyres, I've stopped no end of muppets fuckin a discs or mounting a rim on tyre machine incorrectly.
Boils my piss how someone can't do such a simple task.
Hence made a rod for my own back & became the designated bike tyre specialist
I won't ever let anyone remove or fit or balance my bike tyres, my OCD inner chimp won't let me.