Wetherspoons pubs are limiting parents to two alcoholic drinks each if they have their children with them.
The rule came to light when the Robert Pocock pub in Gravesend, Kent, put up a poster publicising it.
The chain said its guideline for staff applied in its pubs nationwide, and was designed to deter “unruly behaviour” by children left unsupervised.
As far as Wetherspoons is concerned, a child is anyone under the age of 16.
It has been a crime since 1902 to be drunk in charge of a child under the age of seven in a public place. The offence can be punished by a fine or up to a month in jail.