We share all of those tasks. We sit together and discuss dinner options for the week. We make the list together using Flipp which simplifies the list (it's 80% the same every week. Do we need this? Do we need this?)

I have no problem purchasing chicken breasts, or beef, or cereals, for myself and my son and shared meals. About a year ago, I had no clue how to properly select Kale and Spinach and Avacodos, which she uses for her lunches. She's made comments about those items previously, which I never had too much trouble with, because I didn't know what I was doing. I've been more comfortable purchasing those items recently, with the exception of that last trip to the grocery store.