Smoking bans outdoors?

The Herald reports:

Health bosses want the Auckland Council to ban smoking in all public outdoor areas in the city in a bid to stop children picking up the habit.

The proposed ban would include the city centre, parks, playgrounds, sports grounds, stadiums, parts of beaches, council-controlled land such as around the Auckland Museum and art gallery, and events supported by the council, such as Pasifika.

Why not just go the whole hog and have summary executions of people caught smoking? That would be far more effective in encouraging children not to smoke.

One drawback of an execution policy is that Auckland could suffer significant population loss. So to ameliorate the effects, perhaps adopt the Roman decimation policy – just kill 1 in 10 smokers?