I’d love to see some sort of shared household inventory for things like food ingredients.
For example, my female Zoi gardens, but she can only make the food with the ingredients she harvests but my male Zoi cannot, would be great to have a shared inventory so that anyone in the household can use the ingredients if their cooking level permits them too.
Yes. It should be like that.
Yes i think that would be nice too.
I made a suggestion last summer for a “Freezer” item that could contain a lot of stuff, and would be shared for cooking. Well, I still think it’s a good idea, heh.
Yes! We need a freezer and a cabinet for stones. We’ve been asking for this for so long. 
Is it really that hard to implement?
This place for ingredients is called a refrigerator. It already exists, it remains to be finalized. I’ve already written about this here. Add famous game mechanics from The Sims 2 and 3 to InZoi.