erm ... in an economy that's short on jobs, why would anyone want Kate to have a "normal" job too? When someone else with less money and rather more desperate for employment might just like, and need, that job?
Is it appropriate that she keeps working for her parents' firm? Maybe though protocol probably says that the Duchess of Cambridge doesn't work in this way. Perhaps if her parents need someone they could also employ a person, and pay them a wage.
Of course she should start on Royal engagments, but give her a chance. William's doing his job for a couple of years yet and fitting in the royal stuff in between, they're off to Canada on a royal tour soon too aren't they. Sheesh. She's got a steep learning curve, why not let her start gently?