Why did dr.dud tell the sick boy to visit a racetrack?

Well, sometimes when we're feeling down or unwell, a change of scenery can do wonders for our spirits. Perhaps Dr. Dud thought that the excitement and energy of a racetrack could bring some joy and excitement to the sick boy's day, helping him feel better even for just a little while. It's all about finding moments of happiness and light in our lives, even during difficult times.