顶尖美高米尔顿学院就明说了，“Milton Academy welcomes boarding applications for admission to Grades 9, 10 and 11. Students in the Greater Boston area may apply for day student status in Grades 9 and 10. Once admitted as a boarding or day student, a student may not change status except in special circumstances.”至少在该校，走读、寄宿，一旦选定，不得更改（特殊情况除外）。
当然，每一所学校确实不同。最好还是跟学校问清楚、确认好。
另一所美高圣斯蒂芬教会学校（St. Stephen's Episcopal School TX）就说“要F1签证的国际生不能走读”（似乎不管家长能否陪读）：
Q: Can an international student needing an F1 visa enroll as a day student?
No. All international students must live on campus in the residential boarding program. Students are not permitted to live with relatives or family friends.”
