I'm planning to send my 12 years old boy to a private non-boarding school in the U.S. as an international student. He will be entering the U.S. with the I-20 under F-1 visa. We do not plan to migrate to the U.S. but need to live with him as he is too young to live alone. Can we live with him while he attends school using our B1/B2 visas as long as we leave the U.S. before the 6 months period? I realized that this is a tourist visa but there seems to be no other visa options available? We can provide immigration upon arriving from a flight into the U.S. with the proof of our son's schooling. I'd appreciate any advice or recommendation. Thank you very much.