Almost half of 10 to 14-year-olds have seen their parents drunk, according to a new survey.
Research from the industry-funded charity Drinkaware found 46% had seen their parents drunk, with 29% saying they had seen it on more than one occasion.
The poll of 1,000 parents and their children also found 42% of parents admitting their child had seen them or their partner drunk.
But 72% of parents said they felt very confident talking to their child about drinking and 75% believed they were best placed to do so.
Elaine Hindal, chief executive of Drinkaware, said: "While setting rules about alcohol and speaking to children about the risks is a positive step, equally important is that parents understand their significant influence as role models and feel confident to set a good example.
"Children are aware of alcohol from a young age.
"Estimates suggest that around one in three children under 16 in the UK live with an adult binge-drinker, and studies show that the odds of a teenager getting drunk double if they have seen their parents drunk - even if only on a few occasions.
"Understanding the impact of what parents say as well as what they do is important, as both can shape children's attitudes towards alcohol."