It is believed that around one in 20 school children in Britain suffer from some degree of attention deficit hyperactivity disorder (ADHD).

Presently hyperactive children and those with attention-deficit disorders are allowed queue jump at theme parks. These children are given this privilege as they can’t cope with the stress of waiting.

A leading expert in hyperactivity disorders believes that 'queue-jump' is not helpful for these children in the long run. 

Prof Katya Rubia, of London's Institute of Psychiatry, said that this is clearly a medical condition, but it isn't right to bring them up in a system where they never have to wait.

Children with ADHD, attention deficit and hyperactive disorder should be taught to wait. Learning to wait can help these children in their later lives.

But people who favor the scheme of queue-jump for these children claim that these children have 30 percent maturity lag, and are emotionally younger than their peers.

Andrea Bilbow, chief executive of the National Attention Deficity Disorder Information and Support Service, said that the scheme avoided tantrums. Children with ADHD are very impulsive and just can’t cope in a queue or when there is a delay in gratification.