So, I made a large number of Freedom of Information Requests to some Public Authorities. One of them being the Department for Education, in my request entitled Importance of Play for Under 8s. I have received a sort of response (after some hassles) which I am satisfied with. This response releases the following information:
1: Statutory Framework for the Early Years Foundation Stage – Setting the standards for learning, development and care for children from birth to five.
2: Development Matters in the Early Years Foundation Stage (EYFS) – This non-statutory guidance material supports practitioners in implementing the statutory requirements of the EYFS.
In addition the DfE have linked me to the search results for all publications containing ‘Play’ in the title.
So, it is clear, from documents already in circulation, in addition to common sense, that children learn the most important lessons for their life in the first five years of their life. Lessons which involve their Primary Physical and Psychological development. I highly recommend looking at the guidance in (2) above, in addition to other information located at http://www.foundationyears.org.uk/.