@ocelot60- I couldn't think of a better job for someone who is into fashion. Even though your niece didn't make it as a fashion designer, she can still work in the field and be fulfilled. This type of position may be exactly what she needs, because she will be able to use her fashion talents to help people with their clothing and style choices.
Another positive thing about working in the fashion industry as a consultant is that your niece would be able to network with others who love fashion. These opportunities could possibly lead to her being able to get her foot in the right door to eventually designing and seller her creations.