With physical goods it's probably enough to check the age of the person taking delivery. Presumably the people who deliver groceries know what to do if the groc

With physical goods it's probably enough to check the age of the person taking delivery. Presumably the people who deliver groceries know what to do if the groceries include a crate of beer and the person who opens the door looks as if they might be under 18. Presumably they ask to see a driving licence or for someone older to come to the door. Or the crate of beer gets sadly removed from the order and the teenager's father is disappointed when he gets back from his evening walk.