It'll be too late to do anything by the time the penny drops.
We've had the bones of two generations where cheap, plentiful food is regarded as a right and food is bought with the expectation that, if it goes off, they'll be able to buy more tomorrow just as cheap.
They might have to downsize to a cheaper hotel for their two weeks in Majorca with a bit less cash in their pockets but there's nobody going to starve, here anyway. It's going to be a different story elsewhere though.
It'll be interesting to see food security being discussed again.