When answering this question, you can talk about the convenience and flexibility of watching sports events online. For example, people can watch games anytime and anywhere, without needing to go to the stadium or sit in front of a TV at a specific time. You can also mention that online platforms often provide highlights, replays, and interactive features like live chats, which make the experience more engaging. Additionally, watching online allows people to choose from a wider variety of sports and events from around the world. Giving examples from your own experience or people you know can make your answer more personal and natural.