He was definitely thinking like a mechanic.
Having a well-organized changing table is crucial to the first two years of raising a child. Because when things go wrong on a changing table, they can really go wrong. So one has to be prepared for the most dire of circumstances.
The wipes have to be close enough so you can grab one while holding the kid's feet in the air. The diapers have to be easily accessible so the kid doesn't fall off the table when you reach over to grab one.
The table also has to be easy to clean for the inevitable mess that comes when tending to a naked child with zero bowel control.