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I don't actually want to quit now," she said.The percentage of smokers in Australia has dropped from about 50 percent in the 1950s to 15 percent now and the government is aiming to push it down to 10 percent by 2018.With 80 percent of smokers starting before the age of 18, and 99 percent before they turn 26, health authorities hope the new packaging will have the biggest impact on young people."If we can prevent young people from taking it up, that's a lifetime gift to them," Health Minister Tanya Plibersek said on Friday ahead of the law coming into effect.Smoking is one of the leading causes of preventable death and disease among Australians, killing an estimated 15,000 every year.The government says it will not be heavy-handed in enforcing the legislation in cases where a few packets of old cigarettes are sold in error, but there is the possibility of fines of more than Aus$1 million (US$1 million) for a corporation that commits a large and deliberate breach of the law