For typically cash-strapped grammar schools, this is definitely a way to help cover the costs of school activities. Since it develops physical education and also gives the school some extra money, it kills several birds with one stone.
對經費拮据的小學來說，這無異是寬裕校務支出的方法，既可以發展體育活動，又有錢可以周轉運用，一舉數得。