It seems as if the point is being missed here.
Kate (Catherine) Middleton very well may not be employed at all. If she is not, she will not be the first nor the last young woman in her age group and financial status to live comfortably without working.
The point is that if she is currently living the life of a socialite, that's perfectly fine. Catherine Middleton does not have to answer to the public.
Princess William (wife of Prince William) will most certainly be answerable to the public.
She can date prince William for 10 years, but until or unless they get engaged, her time is her own and her life is her own.
If they get engaged, that will be the time to watch her and see what she does. That's when she has to be accountable.
It seems that some people feel that she should either be gainfully employed or spending her time pursuing charitable endeavours. It's a great idea, and if she were a royal princess she should most certainly be expected to be doing something of that nature at this point in her life.
But she is not a royal princess. She isn't obligated to perform public duties or to serve the people. She is not obligated to be useful or to show herself to be a 'worthwhile' human being.
Also, we really don't know what she does with her time, and it's not our business anyway. We can postulate and speculate, but Catherine is entitled to her privacy.
Aside from the fact that it's none of our business, I think it's very silly for any reasonable adult person to assume that young woman spends every single day of her life either shopping or vacationing or sitting in a flat.
I don't believe there are people who actually think the only times she comes out of her home are the days which are documented in photos, and that she stays indoors all the other times. (as if she were a doormouse!
)
If we subtract all of the days accounted for by photos or stories of her shopping and vacationing from the total days in this year so far, she would have been spending the equivalent of about 7 months sitting inside her apartment. Who believes something that silly?!!