Tyres are the only part of the vehicle intended to contact another surface, the road, while the vehicle is in use. Any idiot can see, and has a reasonable expe

Tyres are the only part of the vehicle intended to contact another surface, the road, while the vehicle is in use. Any idiot can see, and has a reasonable expectation, that tyres will need replacing at regular interval. It's less obvious to the average driver that, say, the cabin air filter will need replacing from time to time. A mechanic or vehicle enthusiast should be expected to know this and replace it. It's a whole lot less obvious your car's "computer memory" will wear out. They're not even in the same ball park. The average driver probably doesn't know about flash memory wear-levelling, and shouldn't have to.