We do have an Aldi, but no yoghurt, alas. It is such a problem here getting fresh milk, cream and yoghurt. I think the French would use fromage frais, but I just don't fancy that on my muesli. We were in the south-east, near the Spanish border in the summer and when we crossed over to go to Lidl's there, it had a huge cabinet of fresh milk. Also no problem in southen Spain where our son lives. Here, in Normandy, with dairy cows visible from every window, the supply is very limited.
I was told by a very snotty young man in one supermarket that the French don't like the taste of fresh milk.
Presumably why the coffee tastes so vile.