Immigration laws and requirements are set up to avoid situations where an immigrant consumes excessive public resources without contributing to the tax base. Not everyone is able to work at substantial employment, and even those with superior employment eligibility may become unable to earn income due to disability or unemployment. Therefore, the USCIS uses the affidavit of support to ensure that if an immigrant cannot earn enough to provide for their own care, the support resources will come from the sponsor rather than the state, federal, or local government.
If a sponsor provides assistance to an immigrant but then lacks the necessary resources to meet personal and family needs, the purpose of the sponsorship requirement is defeated. Additionally, sponsors in Bolingbrook must meet income requirements to show that they can sponsor an immigrant without depriving their own household.