Susan, Well stated -- and I'll give you another argument to lay on those you have already made. Technology and innovation change not only the things that someone may need to do, but also the things that NEED to be done in any given profession. For example, think about the technology used for xrays 30 years ago (remember those big plates they had to slide into the imaging mechanism?), versus the digital imagery used today. The physical skills needed to function in that field today are VERY different than those needed by an earlier generation. Progress gives us cause to hope that, over time, less and less will be restricted. Dr. Jane Jarrow