> Almost no one is shopping multiple supermarkets, buying cheaper alternatives, buying in-season veggies and fruit when it’s cheap, waiting for sales to stock up, buying in bulk and freezing, using coupons, meal planning based on the latest supermarket Sunday circular, etc. only a tiny minority of people have been doing so.

I don‘t know where this observation comes from, but here in Austria a majority of people in lower income sectors than IT do all of this?