Thank you everyone!!! Its nice to get so much information for you guys.
To orangeboy
Thank you for your detail suggestion
There is only one flight school in hk I believe, but you have to pay a lot of money to join as a member before you can take flight training, and that is very discouraging. There are no more flights in Kai Tai since they closed it in 1998, they are using Shek Kong airport instead which is a military base as well. As a matter of fact, I had a trial flight 2 years ago in Flight Training Adelaide, and I love it so much! I'm planning to study civil aviation in Australia after I graduated from high school! Hopefully i will be able to get PPL and CPL
Once again thank you guys