I think this is better implemented industrially. It's easier to make a robot that can deliver food (made in a factory), than it is to make a robot that can cook

I think this is better implemented industrially. It's easier to make a robot that can deliver food (made in a factory), than it is to make a robot that can cook a variety of meals from raw ingredients. Both are super difficult problems but delivery robots are at a more advanced stage. Instead of sandwich making robots we are more likely to see sandwich delivery robots rolling around the neighborhood, waiting for someone to summon them.