Kitchen conversation

I've blipped my sons in the kitchen countless times over the past 14 (!) years: collaborating, laughing, bickering, chatting, in and around the process of preparing food. It happens less often now they live a considerable distance apart but here they are again as another family meal takes shape.

What hasn't changed either is the kitchen decor, pretty much  as we found it when we moved in thirty years ago. That corner shelf unit was propped up on bricks after we bought it - just until we got around to fixing it to the wall. The bricks are still there. 
The kitchen cupboards below the work surface were hanging lopsidedly on their hinges in 1994: they still are.
If it ain't broke (much) why fix it?