You can worry about boiling water and sharp knives all you like, but Columbia University says it’s good for them.
From that article:
The researchers found that children who had cooked their own foods were more likely to eat those foods in the cafeteria, and even ask for seconds, than children who had not had the cooking class.
…[S]aid Isobel Contento, professor of nutrition education at Teachers College and a co-author of the study. “Kids don’t usually like radishes, but we found that if kids cut up radishes and put them in the salad, they love the radishes.”
They found that kids who cooked ate healthier foods with gusto. What more do you want?