I think you're looking at the comparison from the wrong angle. The parent poster meant the USA does not take up the metric system because the imperial units are seen as part of their culture while metric is a 'foreign' thing. Typically American sports like baseball, American 'football' and basketball are seen as part of American culture as well while football (which for some unexplainable reason is called 'soccer' in the USA) is seen as the foreign thing, just like metric. It is not like any of these sports is better or worse in any way, in the end they're all forms of ritualised warfare without (too much) bloodshed and they all work in this regard: the winner gets the spoils, the loser gets to leave the field with their tails drooping.