There is opinion that the best way to improve public health is by increasing the number of the number of sport facilities. But there is another opinion that it will be meaningless.
Both views have their own fair point. Many people don't go to sport facilities because of their financial situation or because of fear of being judged. By being accessible, the sport will be more popularized between people of all classes of society. It will get more recognition, and as a result more normalized. For example, we can the results that the politics of the Soviet Union had. The sport facilities were made at every school, and were open to all students. As a result, the healthy lifestyle was thought to children from a very young age. Then, the already grown generation passed down their knowledge and principles to the next one. Therefore, by opening new sport clubs, the government had a number of healthy generations.
On the other hand, many of people don't go to sport facilities because of lack of time and energy. For example, the average office worker, who has 9-5 job, and then do some other work around home, will not see the benefit in newly opened sport facility. And as we see in statistics, more that the half of the population of earth are in the same situation.
In conclusion, I think that by expanding the sport facilities, the government will only have a very little success in making their population healthy, and should seek the other metod.