Lidl is the one of the two major supermarkets I don't visit, they are in the opposite direction from me and it sounds like that's just as well. My route to an edge of town Sainsburys takes me past an M & S, Co-op, Aldi, Iceland, Waitrose and Somerfield, seven in just five miles. The other one I don't see is ASDA, they are on the other side of Croydon.
Since Danidl has said this too, it seems like a country thing, perhaps more relaxed on security. Ours can be quite tough, perhaps not surprising in a big city with very busy large supermarkets.
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