I just want to point out two things and hopefully won't get virtual fruit thrown at me :tounge:
First, Camilla did have organizations that she was a patron or president of before her marriage to Charles, so I'm not quite sure where the waiting two years came from (you can see the patronages she has had for years and when she began her involvement with them on the Prince of Wales Official Website). So there could be charities Catherine has been involved with or not, all we know is that she hasn't made a "royal" declaration of support so far to any particular charity or foundation.
Second, I think what bothers me personally has nothing to do with Catherine or the BRF but how some royals (born AND married into) are treated if they are not actually seen doing something related to their royal life. I'll use the example of CP Frederik of Denmark who constantly gets written off as the least prepared heir because he doesn't work "outside the palace" as much as Haakon or Willemstad-Alexander or Charles. People assume he too sits on his tush watching football all day and not living up to his destiny. It only takes a royal documentary to show how much royal life and royal duties actually do take place inside their homes or official residences. Catherine IMO is getting the British equivalent to Frederik lack of duties (as in, more people know and follow the BRF, thus there will be more criticism than if she had married the heir to the heir in the DRF or the another royal family. Hypothetically of course, Christian is a bit too young for her :wink: ).
Like Kitty, there are several organizations that I am already involved with and if I were to marry a prince and be expected (not required, remember) to be involved in such things, I would immediately have them as my first patronages. But like Catherine, if I had the means to not have to work right away after marriage, I wouldn't mind some of the 'me' time she's giving herself.
Time for sleep now...