I refer to the letter headlined, 'A real asset' (South China Morning Post, September 25), regarding proposals to build a casino in Hong Kong. I am sure everyone has gambled at some time in their lives. I like to make bets with my friends. This kind of gambling does not harm society. However, we already have different forms of gambling in Hong Kong - horse racing, speculating on the stock market and the playing of mahjong in the family home. I think we have enough gambling in Hong Kong. Undoubtedly, a casino would be a real money-spinner. Nevertheless, many studies show that legalised gambling can adversely affect society, and lead to an increase in crime rates. Look, for example, at Macau, where high crime rates are linked with gambling. Recent research in the US has revealed that crime rates have increased about 400 per cent in areas where gambling has been legalised. What gives more cause for concern is the cost to society. This leads to the breakdown of families, decreased productivity and financial insolvency. These problems place increased demands on social services. It is important that there is an increase in the level of education, so that adolescents are made aware of the dangers of gambling. I urge Donald Tsang not to support the establishment of a casino. RICK LEE Causeway Bay