ibizagirl, I know, I believe you.
bigboobiedbertha, yes I am astonished about Australia and NZ.
In Sainsbury's they display the calories, and everything is a lot. There is hardly a single main meal under 1000 cals. you do see a lot of big people eating there, except the old people (who maybe only eat once a day, eat 1000 cals at lunchtime and then don't have to cook? Hypothesis).
There is some torturous wording relating to the kids' lunchbag: something like "every element has within recommended allowance of fat, salt, sugar," or something. In other words, the whole thing adds up to nearly 700 cals and that is too much, I'm guessing (though I have no idea in cals what kids are supposed to eat, and of course it will vary enormously with age and size). I never buy them because my kids couldn't make a dent in one, but then again, they are very young, so maybe they are suitable for older kids.
DP and I have this conversation every time we go to a place with a kids' menu.
"Shall we get this? kids' starter, main, pudding, drink for £5.95"
"Why? They usually split a kids' pasta, if we start them off with starters etc they won't eat anything else. Also they usually drink tap water. If they say they want pudding we can order that later"
"OK"
Every time. Every time. So we order them a small main to share, maybe some ice cream to share afterwards, and it is never cheaper than the deal with all the dough balls and squash etc. So yes, you do have to go against the grain to eat to appetite