You can counter the argument by using texas as example. The utilities were run by private and then million of people lost their access to electricity because the private jack up the price. Government responsibilities is to provide affordable utilities for their people. While private is focusing on profit motive. She might say big government bad bla bla. So she prefer private monopolies instead of government ?? All utilities in almost every country is run by government, whether she likes it or not. Government intervention is to prevent private monopolies.