Mark Brown said he would try to avoid shopping at Asda in the future
A man who was prevented from buying a bottle of wine in a Sussex supermarket because he was with his 15-year-old daughter has criticised its policy.
Mark Brown said he told staff at Asda in Brighton that the wine was for him.
But Mr Brown, who often shops with his daughter Madison, said he was told he could not be served the alcohol unless she had ID to prove her age.
A statement from Asda said it had been "erring on the side of caution in line with national guidelines".
The company is one of several supermarkets using the new checkout policy in order to prevent individual members of staff from being prosecuted for selling alcohol to someone under age.
Richard Dodd, of the British Retail Consortium, said: "I think parents should actually be reassured to see retailers being so rigorous in their determination not to sell alcohol to under-18s."
But recruitment consultant Mr Brown said: "The supermarket have a policy which is forcing people to make judgement calls and decisions which they are not really trained or experienced to do."
He said although he did eventually buy the bottle of wine in question, he would try to avoid shopping at Asda in the future.