More than 80 per cent of bottle shops Communities That Care Alpine (CTCA) checked as part of the Smart Generation program did not check or request an ID when selling alcohol.

The alcohol monitoring, an initiative of Alpine Health, involves young people aged 18-22 "but look underage" going into bottle shops and licensed premises to attempt to purchase alcohol without a valid ID.

The audit also found a "consistent message from bottle shops" which highlighted the challenges staff face when asking for ID around their own personal safety and levels of confidence because of abusive customers.

In Victoria it is a requirement to ask for ID if a customer looks under 25 as best practice and to not only check IDs but make sure they are an acceptable form of ID such as an Australian drivers licence, proof of age card, keypass card or passport.

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"One outlet suggested that they should install a huge sign that states 'No ID - No Sale of Alcohol' but then countered, as patrons would go elsewhere because no one seems to be checking for ID," Alpine Health chief executive Lyndon Seys said.

Bright Senior Sergeant Doug Incoll said the results were "very disappointing to say the least".

"It is a timely reminder to reinforce the responsibilities of all retail outlets regarding the supplying of liquor to young people," he said.

"If liquor retail outlets are caught selling liquor to minors then a fine and demerits on their liquor licence will no doubt remind them of their responsibilities."

The fine for selling alcohol to minors is $1983.