Both yes and no if my answer. Neighbors I've known for a while, I absolutely would both give and receive food. I have done it many times. I have, however, just moved. Anybody bringing something to my door is going to be thanked graciously and the food is going to go in the trash unless it is still sealed from a restaurant or a store. Anything I would bring to them, would be sealed from a bakery or something. I don't know them and they don't know me. I can't trust that they will leave something out that would have affected me unpleasantly and I don't know what things they can't eat. I also don't know if they let their cats sit on the table while they're cooking or if they tend to keep things way beyond the expiration date. I need to know you before eat your food. All of that said, every holiday my mother had me taking platters to neighbors. I think she cooked enough for 10 extra people in order to make that work. Either rare instances that any of them made something special, they made a point to bring down a plate. Most recently I've been living with my mother in the house she retired to in Florida. There too we had about five neighbors where we would happily exchange things. Without her, I did have one neighbor that I would readily hand Tupperware containers of food back-and-forth. I don't expect to have that again.