While the MagSafe power adapter is designed to travel with your Mac notebook, some ways of using it can contribute to the fraying or breaking of cables. The MagSafe adapter, like any other metal wire or cable, is subject to becoming weak or brittle if repeatedly bent in the same spot. Follow these recommendations to reduce the likelihood of damaging the adapter.
I still really miss MagSafe. USB-C charging may be convenient, but it’s not as nice.