[HPsquared]

Some tyre compounds wear a lot faster than others (though often with better grip). I wonder if that's contributing.

The other thing is poor alignment (especially toe settings) which cause the tyres to fight each other constantly. It can be a very small difference, almost imperceptible but still accelerate the wear.

10k miles is very short for a tyre.

Often you can tell a lot from the tyre temperature after a drive: if they're getting very warm, it can indicate problems, e.g. if one axle has much warmer tyres than the other (hard to give an objective standard on that, though, so many factors)

[thedougd]

Aren’t higher speed rated tires softer? Maybe try swapping for a lower speed rating unless they plan on driving it at extreme speeds.