In a competitive market, it's always worth reducing the cost of inputs. The restaurant business is generally a competitive market (it's actually a bit worse than an ideal competitive market for participants, because there are usually lots of unsustainable competitors selling below cost and losing money.)
This sounds like the problem. Shouldn't the government do something about these anticompetitive practices? I don't think a good economy involves "charities" driving the restaurant business to extinction.
A somewhat common problem on Kitchen Nightmares was owners who didn't know how much they were spending on labor or food.
You mean, government should prevent owners from subsidizing operating costs as they try to establish and scale a business? Even if government wanted to do this in general (which would destroy Silicon Valley), how would it ever enforce it against millions of local small businesses, many of whom are doing it not out of deliberate strategy but simply out of lack of business skill?
And, more importantly, how do you do it without creating barriers to entry that are themselves anticompetitive in a way which is much more consumer hostile?
Seems so. We've got people saying labor is the biggest cost for a restaurant or pizzeria, but that necessitates asking: holy shit, how can the value-add of a fresh, hot pizza over its unprepared ingredients be so low that it's worth cutting wages to below $8/hour by robotizing the work? If pizza really takes that much value as input, why does it have so little value as output?