I agree it should be more about education.
I am someone who eats healthily most of the time and treats myself every weekend-sometimes only every second weekend.
Unless I was on a 'treat day', I'd never dream of buying a meal deal, ANY meal deal. They're mostly unhealthy compared to what I'd usually eat, high in sugar and salt and use up a lot of calories but don't sustain anyone for so long.
But I know this, I have educated myself in it.
I disagree that they're cheap. They're convenient and cheaper than if the products were bought separately, but buying one every day or even a couple of times a week as opposed to making one's own lunch would add up quickly over time-that's another reason I'd not buy them.
I don't have much income-contrary to what a previous poster said regarding 'It's people with more money don't buy meal deals' as I've recently lost my job, but even while working I'd not have spent money on a meal deal unless I was, stranded somewhere with no chance of food for the foreseeable and was starving.
Having said that, I do not think this plan will work. People will just go to the nearest greasy spoon.