Because you can only pick 11 men at a time. There just isn’t the passion for team sports in China from what I have seen and you need that passion to create the conditions where talented players can get to the top. It is no use having someone who makes Ronaldo look like a saturday morning part-timer if he spends his entire life assembling iPhones and contemplating suicide. Can’t say for India as I haven’t spent much time there but Cricket and Kabaddi seem to take the place of football there.