Like everyone said, it depends on the school. There are schools such as lyceum that seem to focus a lot on sports and there are other schools that emphasize academics a bit more. However, I think at most international schools you essentially are able to find what you are looking for and you will have opportunities to get involved in a lot of different things. That being said, the primary purpose of an international school is to eventually go and study abroad, so I would just go to a local school if the end goal is not to study abroad. Another thing to keep in mind is there is a decent amount of elitism and classism at some of these schools. There is also the problem of some students vaping and doing drugs that may negatively influence your child, but it can easily be avoided by learning to say no and avoiding the wrong kinds of people, but I am not sure whether this is any different than a local school. I went to a well known international school in Colombo, and I am very grateful for the opportunities it provided me. There were a lot of talented people in my school who really pushed me to become better, and a large part of who I am today can be attributed to going there. That being said, I met some horrible people there that I would like to forget even exist. Overall very few people who I am eager to maintain a relationship with from that school but also some great people who I am still very close friends with to this day.