I am not sure why said Asians are involved in cricket. I think you meant South East Asian. I am not sure about other countries but in india people love to play and watch other games too such as badminton, wrestling, hockey and football. The government of India has also started promoting and encouraging other sports keeping in mind the Olympics. To an extent it has also started showing results. Cricket is still the most watched and played sports but slowly other sports have also started to get the same attention.
In 1.3 billion people few may be interested in badminton or hockey but majority are interested in cricket only that's the prime reason BCCI has 38 domestic cricket team.. In last summer olympic, India won only one gold medal so you can easily imagine how much interest 1.3 billion have in other sports.
I second with that - in Pakistan only one athlete participate in winter olympics. And there were 2 assistant with him, now you can realize how much interest Pakistani have in other games. Only a few people have interest in other sports. cricket is the game which can be played with least investment that is one of the reason kids play cricket and then they get interested in cricket.