I recommend Scratch and editor.p5js.org My kid is 7. He can't really code alone, but he can do nontrivial modifications to Scratch programs based on trial and

I recommend Scratch and editor.p5js.org My kid is 7. He can't really code alone, but he can do nontrivial modifications to Scratch programs based on trial and error, he can create very simple but visually interesting p5js apps like this: https://editor.p5js.org/skinner/sketches/xjUwFm1pF https://editor.p5js.org/skinner/sketches/xjUwFm1pF , and he enjoys a lot being the product designer when we create more complex p5js apps like this: https://editor.p5js.org/skinner/sketches/bPh8JRHrV https://editor.p5js.org/skinner/sketches/bPh8JRHrV .