I recommending checking "yes." At the Sponsor Social later in the summer, you will have a chance to meet the sponsor family you've been matched with. You can test drive the program, and if it's not for you, you can always politely decline future invitations, and formalize that decision by dropping by the Sponsor Coordinator's office during the academic year to get yourself disassociated. You may find yourself going along to a roommate's sponsor home, a local mid's family home, or just doing your own thing. Don't rule out an option before fully evaluating how you fit with it.