For most children, the GP is their main point of contact with the health servivce. While children make up nearlyy one-fifth of the population in England, they are estimated to account for two-fifths of a typical GP´s workload. Despite this, the Royal College of Paediatrics and Child Health estimate that in many parts of the country, between 40 and 50 per cent of GPs have a had little or no formal paediatric training. Evidence suggest that many of these case could be managed outside an acute setting. 

Source:

The King´s Fund