Swimming is popular with most people, because in the past people have houses near the river. Most people, therefore, is justly categorized as sports where there is a winner and a loser.
Swimming is popular with most people. In the past, people have a house near the river. Most people do not swim. Therefore, it is classified as a sport has winners and losers.
Swimming is popular of many people. In the past, people have the house is near the river, most people now know how to swim. So it provided a sport with a winner and a loser.