If a child is using a fake ID to buy cigarettes and alcohol, the harm they suffer is not from owning or presenting the ID, but from consuming the product which the ID gives them access to.

A company could in theory ask for ID before selling any product (ignoring age discrimination laws), and you wouldn't say that a child is harmed if they use their fake ID to buy a bottle of water, for example, so the use of the fake ID doesn't necessarily lead to harm.