Is this how NFs really feel about their food and/or coffee being eaten by nanny?

I’ve been nannying and babysitting for 3 years now and each time the NF will tell me that I’m welcome to eat their food and they’ll even buy me my preferred meals and snacks and coffee. They’ve also told me that I don’t need to bring a lunch.

A few weeks ago I saw a post on here that completely contradicted my experience. In fact, they had a similar start as me, where the NF said that they are welcome to eat their food and drink their coffee and help themselves to anything in the kitchen. But the comments were indicating that the NF did not actually mean that fully as they were getting upset over their nanny’s eating their food and drinking their coffee.

I was shocked by what I saw that I completely stopped eating at my NFs house. I don’t want them to be upset at me for that. I even thought about contributing to their coffee supply since I drink so much coffee or just bringing my own. What do you think?

Should nanny’s bring their own food and coffee? Do you offer up your food and coffee to be nice?