Office of ~ 15 macs here, all machines within 4 years old. It seems the Magsafe 2 chargers are failing at a MUCH higher rate then the old side mount Magsafe 1 c

Office of ~ 15 macs here, all machines within 4 years old. It seems the Magsafe 2 chargers are failing at a MUCH higher rate then the old side mount Magsafe 1 chargers. All fraying around the T Magsafe connector. I have just had to order 3 more chargers. I am not saying that people weren't rough with them (quite likely at least 1 of the users were), but the Side mount Magsafe 1 chargers seemed to fare better.