The idea of it is incredibly appealing to the DevOps and Automation guy living inside me. The idea that I could scan groceries as I use them up and build a live shopping list, I can just push button send... sounds super cool to me. However, the Security guy that lives in me knows the reality is I am just installing barely functional spyware.

Just have a look into fridges of other people - absolute mess usually very tightly stacked. There is no way for some camera to even guess what "food" is it looking at let alone if it past the expiry date.