In America, all establishments that serve alcohol require us to show proof of age before entrance is granted or services are rendered.

在美国，所有供应酒的地方都会在允许我们进入或提供服务之前要求我们出示年龄证明。

youdao

Sue Ramsey from Sinn Fein said a young woman working in an off-licence had told her she felt intimidated when asking for proof of age.

BBC: Northern Ireland Assembly

Shop manager Gary Singleton, on duty at the checkout, rang the bottle of rose wine through his till without asking for any ID or proof of age.

BBC: Lidl overturns five-day alcohol ban at Govanhill store

Children under 14 are free with proof of age.

BBC: Green-fingered gatherings in Berlin