usb wear and tear

some of the usb are used heavily.. like phone charger.. which may have to be moved from pc to  laptop and so forth..

sometimes teens tend to just pull the wire because it is not easy or handy to pull at the end.. i am concerned the usb wire may give up or become ineffective soon. is there anything we can do? are there any "rough-skinned usb wires" that we can replace so teen abuse wont affect too much?