He is a window cleaner. Most of his clients are retired, and he can technically go about his work without coming into contact with anybody at all (They stay inside, he cleans outside, they pay by bank transfer/ leaving money outside in an envelope or whatever). As they are all retired so have pensions etc no one has cancelled as yet as they are not worried about their income! He's fully prepared to not be able to go, but then he's self employed and we absolutely cannot afford for him not to go to work, like so many others - universal credit or whatever just wouldn't cover the basics.