Love Among the Ruins: A Romance of the Near Future

From Wikipedia:"Love Among the Ruins is a satire set in a dystopian quasi-egalitarian Britain. The protagonist, Miles Plastic, is an orphan who at the beginning of the story is finishing a prison term for arson. Crime is treated very leniently by the state, and conditions in prison are actually quite superior to those among the population at large, leading to an understandably high recidivism rate. Upon release, Plastic goes to work at a state-run euthanasia center. The centers are not restricted to the terminally ill and are so popular that Plastic's sole responsibility is to stem "the too eager rush" of perfectly healthy but "welfare weary" citizens..."