A supermarket near me has reorganised and they’ve had to put up signs telling people where everything now is. So what was the point in reorganising it?

I think there should be legal definitions of where things are and what aisles they’re on. I don’t understand why sometimes eggs are considered dairy and other times they’re in a completely different part of the store. I actually don’t care which one they pick but I would like all supermarkets to be consistent. One place near me that has a dairy aisle, for all dairy except yogurts, which are on a neighbouring aisle. Every time I want some cheese I always go down the yoghurt aisle and get lost.