A clampdown on cigarette vending machines in late-night venues would be "unjustified" and cost the industry around £29m, new research has suggested.
A survey, commissioned by trade group Noctis, has concluded the problem of underage entry is being tackled - including turning away around two million under-18s a month.
The poll, of 500 venues, found that 92 per cent of operators were using a proof-of-age scheme, such as Challenge 21.
The evidence is being used to oppose government plans to restrict the way cigarettes are bought from vending machines - part of a government effort to stop young people taking up smoking.
Licensees could be forced to hand out tokens to customers who have proved their age when the measures take effect in 2011.
The poll also found eight out of 10 venues have doorstaff three nights a week or more - and more than half have them every night of business.
The survey, conducted by CGA Strategy, concludes: "All the evidence, suggests that late night venues should not be subject to fresh restrictions on the advertising and display of tobacco products nor face any restriction on cigarette vending machines.
"The opportunity for under-18s to access such products are so minimal that the £29 million negative impact on an already struggling sector simply can not be justified."