the reason why soccer's more popular in undeveloped countries is that it's so easily played. think about it, football needs pads and goal posts, hockey needs pads, and sticks, and basketball needs nets. all you need to play soccer is a ball. if kids in undeveloped countries, like places in africa, south america, and asia, ever get leisure time, they problably pass the time playing soccer. those kids have incentive to make it big. that's why it's so common. (i took world cultures class in summer school)