I really think children should be able to cook some basic recipes by the time they leave school. I think there should be three things they can cook and they should be tested on them so we have some hope of producing a generation which doesn't rely on junk food. But how would you decide what these should be? These suggestions of mine are based round my own children's needs (they need high energy food at the moment: they're 10 and 12 and do a fair bit of sport).
Macaroni cheese
SHepherd's pie
Apple crumble
Spaghetti bolognese
Roast chicken
Sponge cake
Basic tomato sauce for pasta
Jacket potato with tuna mayonnaise
Roast potatoes
A simple vegetable curry
Chicken or fish fillet in homemade breadcrumbs
???