Own up whoever sent this spoof (surely?) question to the Daily Telegraph?
"This year our children's school has started formal school lunches. We have always provided well-balanced and nutritious packed lunches for our daughter and felt happy that she would not be exposed to the vulgarity of other children at mealtimes. We would value your thoughts on this. Olga and Simon Horwood, Kensington"
Personally, I'd get them out of school and employ a Governess.