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A parliamentary budget watchdog report says that tax revenues arising from marijuana sales will be modest when legalization first takes hold - hundreds of millions of dollars, rather than billions. Cured flowers of cannabis intended for the medical marijuana market are seen at a licensed producer facility in Moncton, N.B., in an April 14, 2016, file photo. THE CANADIAN PRESS/Ron WardRon Ward/The Canadian Press

An editorial in the latest Canadian Medical Association Journal says the Trudeau government's plan to legalize marijuana will put young people at risk by setting 18 as the benchmark minimum age for buying pot.

The article says cannabis has harmful effects on young brains, noting that the association recommends the legislation restrict the amount and potency of pot available to those under the age of 25.

The Liberal legislation sets 18 as the basic age for purchase and consumption, but allows provinces to raise that to coincide with their age limits for alcohol consumption.

The editorial says regular use of cannabis by young people can hurt developing brains.

The government says the purpose of the legislation is to protect public health and safety, but the bill falls short of this objective, the editorial argues — especially when it comes to young people.

It also predicts that the legislation will result in a substantial increase in impaired driving, particularly among the young.

Some marijuana users at a Parliament Hill rally for the pot-themed 4/20 celebration are stoked about Liberal plans to legalize the weed by July 2018. But others say they feel burned that toking will remain illegal until then.

The Canadian Press

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