When you open a fresh jar of peanut butter do you only work through one side until it is completely empty then start on the other side?
Or when you get those shallow tubs of hummus does it have to make it back home undisturbed? Then one of the baggers at the grocery store shoves it sideways into the bag completely ruining the symmetry.
I will eat all of the chocolatey edges of a Kit Kat before I start to eat the wafer bit that’s left with just two thin layers on top and bottom at that point.
People who separate anything they eat are heathens. The proper way is to stuff bits of everything on your plate in your mouth at once for the correct taste and texture sensory overload.