It would boost their creativity as well as their learning because they would be designing the project and doing research for it, It would make the majority of parents happier if they knew that their child wasn't using their summer vacation for completing a project that was designed by a teacher and not their child, and the teachers would be less stressed as well knowing that the outcome of letting students design their summer project would result in more diversity between what the projects were about and would more than likely contain less repetition than they would if the teachers were to design the summer project.