The Local Government Association (LGA) has recommended that restaurants should offer free tap water to families which eat out instead of waiting for customers to request it.
The LGA claims the move would offer a healthy alternative to sugary drinks and help restaurants do their bit to tackle childhood obesity.
Current regulations dictate that all licensed premises must provide free tap water in England, Wales and Scotland, but not Northern Ireland. However, the LGA has said that one in five people are unaware of such rules.