I'm unconvinced. I used a MacBook for about three years around 2010, and had to have the charger replaced twice as the cable started cracking near the MagSafe c

I'm unconvinced. I used a MacBook for about three years around 2010, and had to have the charger replaced twice as the cable started cracking near the MagSafe connector. The third charger started falling apart (insulation yellowing and cracking along much of its length) while sat unused in a drawer. I've also had two or three Lightning cables fail in a similar manner until I switched to Anker cables. I've only ever had one non-Apple laptop charger break in a similar way, and that was after five years of heavy daily use. I've never had the insulation break on a micro-USB or USB-C cable (I used Windows Phones until I got an iPhone 11). If it were entirely due to user behaviour, I wouldn't expect to see such a disparity between Apple and non-Apple cables.