Sure, I understand. Peanut butter is something unusual or exotic for Russians, but for Americans it's totally normal. Almost all children are eating peanut butter and jelly sandwiches during their childhood. :) I eat peanut butter on a lot of things - celery, bread, crackers, and it's most delicious on red apples. :)) In the U.S., school lunches are not free. Children must pay for them, but the U.S. government subsidizes the cost for low income families.