My husband is local born Chinese, but don't speak Chinese! I am from HK. After married I stayed until I got PR. recently moved back to HK n found out my son lost his HK identity. Now he needs to stay over 7 years to get HK residency! Although it's hard to get in top schools in HK but same thing happened in UK too! As long as you look you will find good schools for your kid! My son don't speak Chinese when we're back, now he speak Cantonese n mandarin too! I'm very happy with his progress! For my husband he still don't speak Chinese or understand it but seem he is quite enjoying here