The milk is still in the back, along with perishable juices. The difference between them and the aisles is that processed foods (frozen dinners, vegetables, snacks, brand name yogurt & cheese, ice cream, breakfasts) are all located near the front of the store, while fresh ones (milk, meat, fish) are located at the back, and perishable-but-non-refrigerated goods (fresh fruits & vegetables) are off to the back & side. So it really seems like a deliberate attempt to put the items you would buy frequently as far away from the door as possible, and make you walk through the goods that you might stock up on on impulse.
Although, maybe that's an argument for putting it by the checkout lines instead, which I suppose are by the entrance. Hm.
And are you sure milk needs to be stocked from behind? Is it at the back of the store because it needs to be stocked from behind - or is it stocked from behind simply because its at the back of the store?
Plus with thing like milk, it is a real pain to push several gallons uphill to put something else in front (ever try to put a milk container back on the sloped shelf? Takes a couple hands and some fidgeting to do it).
The distance from bay to fridge plus fridge to the exit is the same wherever it goes.
For example, in Aldi stores, the milk is usually kept quite near the entrance, along with the kind of things you'd keep in the fridge (butter, cheese, etc) and the bread. In the likes of MS and Waitrose, it's usually somewhere near the side of the store, not too far from the entrance but past the fruit and vegetables. Same sort of deal with Tesco, Sainsburys, etc. Smaller convenience stores are usually just kind of random.
Nah, if you want real exploitative design, note how many shops are designed to draw out your shopping time as much as possible, by having a nice Z pattern that 'encourages' you to trudge through the whole store before ending up at the checkout. I think in that sense, most over here seem to have taken inspiration from the likes of Ikea or Costco more than anything else.
There's also the obvious 'fake sale' dark pattern, as well as the 'move everything round every few weeks to disorientate regular customers' one.
Costco certainly doesn't Costco has aisles, and sections for each major product category. IKEA has a "tour the store" design which is nice for a store you browse because you want something for every section (room in your house). You can go directly where you want if you know what you want.
In the US, Trader Joe's does this.