Answer:
Its to help save money to help soldiers, they used boys and girls to show uncle sam cares about children to display certain emotions, war stamps where used to fund the soldiers.
Explanation:
In the early 19th c., the South of the country tended to oppose tariffs. As you may already know, the South opposed many things, slavery being the most important thing.
The story "The Rat and the Mongoose" may help answer this question.