Persistent users likely to be lower paid and have relationship difficulties Research found abusers ended up in a lower social class than their parents Also more prone to be in less skilled, prestigious jobs and to run into debt Study by Californian university followed children from birth up to age of 38The study, conducted by a team of researchers led by Magdalena Cerda at the University of California and Avshalom Caspi and Terrie Moffitt at Duke University, appeared in the journal Clinical Psychological Science. 'Our research does not support arguments for or against cannabis legalization,' said Cerda. 'But it does...