Hi Catherine, I went a session at the Diabetes UK conference about type 2 diabetes in young people. It is still, fortunately, rare in this country as the evidence suggests that young people who do get type 2 have more complications, earlier, and it affects their quality of life very badly. As you say young people who develop type 2 are going to have it for a very long time; there's no stronger case for saying that prevention is better than cure (or in this case of course, not cure but treatment).