Outdoor smoking remains unfinished business for the Cancer Society, which is trying to realise the Government's goal of smoking prevalence falling under 5 per cent by 2025.
"Auckland Council have already committed to smokefree outdoor dining by 2018 and including [it] in this bylaw process provides the perfect opportunity to implement it now, in a simple and cost-effective way that is in line with what Aucklanders want," the society said.
An Auckland survey commissioned by the society last year found 30 per cent of smokers and 63 per cent of non-smokers - or 57 per cent when combined - favoured a bylaw approach to smokefree areas.
Aside from the question of compulsion, majorities of smokers and non-smokers alike supported commercial outdoor dining areas being smokefree (58 and 80 per cent respectively).
Fifty-seven per cent said they would be more likely to use outdoor eating places at restaurants, pubs or cafes if they went smokefree, while 34 per cent said it would not affect their likelihood of using them.
"Smokefree outdoor dining areas help people who have quit to stay quit," said Mr Loof. "People who are trying to quit, it makes it easier for them to quit. You don't have outdoor hospitality workers exposed to smoke and you don't have kids at the table next door seeing smoking - it's the denormalising idea as well."
Restaurant Association chief executive Marisa Bidois said the legislative ban on indoor smoking "hasn't caused too many problems". Many association members in Auckland had voluntarily extended their no-smoking areas outside.
"Many establishments also try to cater to customers who are still smoking ... The industry will do whatever we can to serve our customers. That's what drives hospitality."