The problem, as I see it, is that these things only pretend to be logical. In fact, as SuperFelix points out, we're unlikely to charge athletes more, though their training means injuries which means costs. These ideas are about punishing people who don't fall in line--smokers and fatties, in the current case. You'll notice, for instance, that we're not charging people who drink a few pints a few nights a week...
This seems to me another example of why we need a 'civil rights' type movement for fat people. Unfortunately, the people who have nominated themselves to lead that movement don't think it should include us, and (maybe relatedly?) we don't seem to participate much in it.
14 years