Hello fellow waldorf student in the wild! Remember that most waldorf schools in the country DO grade in highschool. However it is process that allows for more feedback and conversation about your performance.
Brought up in China. I was NOT fortunate enough to have being a waldorf student myself. But my various experiences in life have lead me to meet many graduates and teacher of waldorf school. So far all of them I meet a incredibly intelligent and very nice to around.
Because Waldorf is great, or because children from rich families that pay for private school tend to be intelligent?
some of these family are in Denmark, which has a very egalitarian structure. But yes, family environment and friends circle counts a lot as well. Which brings me back to it is more important to have a good environment than learning any information. All that can be learn on the job.