Free School Milk was introduced in about c1948 - very soon after WW2. The then Labour government had created the Milk Marketing Board which ensured a fare price for dairy farmers for their milk. All UK produced milk was sold through the Milk Marketing Board.
Milk was given to all school aged children from age 5 to 15 in those days.
Margaret Thatcher as minister of education abolished free school milk in the 1970s in the Edward Heath [Tory] UK.gov of c1970-72.
Free school milk has not since been reinstated and is unlikely to, unless the people of Britain vote for a Socialist government, which they seem not to want.
The present government, lead by the Blair/Brown axis, is not Socialist, it is at best described as pink-Tory, or pale blue-Tory.
I started school aged 5 in 1946 and left school aged 15 in 1957 and enjoyed free school milk every single day of my school days. Result, I grew up fit and healthy. The last time I was ill was in 1962 when I was 20/21 with tonsillitis. Otherwise only good health. I am now retired.
Source(s):
VOTE LABOUR FOR A SOCIALIST BRITAIN.