By Ros Wynne Jones & Claire Donnelly Stephen Martin is living what the Prime Minister calls “a lifestyle choice”. An artist and gardener, he lives with mental health issues and Long Covid and has struggled with full-time work. Stephen lives in the family home in Sheffield he was born in, but spent a cold, dark winter there because he doesn’t have the money to rewire it. His electricity circuit blew more than a decade ago, so he lives without electricity and gas, with no heating, no light and no cooking facilities. Despite debilitating health conditions, the 64-year-old manages to work some …