Answer:
Canine children.
I can be red blue purple and green. No one can reach me not even the queen.
I begin your sentences. What am I?
I am a kind of coat that can only be put on when wet. What am I?
You throw away my outside you cook my inside. Then you eat my outside and you throw away my inside.
The answer I give is yes, but what I mean is no. What was the question?