My parents received their green card in September 2023. They visit me every six months and typically stay outside the U.S. for less than six months. My first question is: if they travel to Canada or Mexico for a week, would that be acceptable, or could it affect their naturalization process? I am planning to apply for their naturalization in September 2028.
My second question is: what happens if they leave the United States earlier than six months and then return less than six months.
Thank you so much in advance.