If my son gets into MIT - what's next

The only way to know the answer is to visit and stay sometime during the school year with another student. S stayed there from Thursday to Sunday on an athletic OV, staying with a friend from HS a year ahead of him 1 night and with a potential team member the 2 remaining nights. S was an unweighted 4.0 and had taken all the STEM AP courses offered in his school, but after attending a few classes, he just didn’t see it for him. There was a passion and dedication to science/math that he just didn’t have.