tom whipplepublished at 1201am, december 29 2014every day that the government delays its planned introduction of plain packaging for tobacco hundreds of children take up smoking, a letter signed by almost 4,000 doctors has warned.legislation to force tobacco companies to sell cigarettes in plain packets will probably not now be introduced before the general election.the delay has prompted an open letter to the british medical journal in which the doctors, including the president of the royal college of physicians, warned that &ldquoover half a million children have taken up smoking since the government first announced it would consult on plain standardised packaging of cigarette