Reg Bailey, author of Government-commissioned report Let Children Be Children and head of the Mothers' Union, said: "Many of the industries mentioned in last year's report have responded positively to our recommendations. I cannot say that has been the case with music videos... Age ratings should be introduced for music videos. There is also a clear case for age-verification for [music video] sites."

Bailey's accusation follows recommendations in his report triggered by parents' fears over explicit content in certain music ...