Peter Phillips has been lucky so far, he's not well known as a royal, and he's been principally employed by RBS in Hong Kong, which is far enough away from the British press. We'll see what happens now he's unemployed and presumably seeking employment.
Prince Friso was able to work here in the UK completely freely because he had no profile here. Beatrice or Eugenie could head to Hong Kong or Singapore or LA and enjoy much the same freedom.
I agree about Peter Phillips and that highlights my biggest concern. Peter and Zara were almost always kept away from the press as much as possible thus when they became adults they were able to move with relative ease to full time"normal" jobs. Personally I feel at times that its almost as if some people are trying to put the Princesses into such a position whereby their public profile makes being a full time royal the only option for them.