The kids in the pictures actually look as if they are having fun. There are pictures of kids throwing footballs surrounded by people in a crowded stadium. There are kids feeding their pets. There are kids taking out the garbage and actually smiling. This may not be the most scientific of studies, but it suggests certain positive findings.
Children understand the value of effort.
They know more than we think they do. To be sure, getting a child to throw a football or take care of a pet may be considered easy efforts. There is a readily understood pleasure involved. Taking out the garbage and picking up trash is a harder sell. The Sound of Effort I can't do it.