Most York student accommodations have policies that do not allow parents or guardians to stay with students in their accommodation. These accommodations are typically designed for student residents only, and allowing visitors, including parents or guardians, to stay overnight may disrupt the living environment for other residents. However, some accommodations may allow short visits during the day, but overnight stays are generally not permitted. It's essential for students to check the specific rules and policies of their accommodation regarding visitors, including any exceptions or special arrangements that may be available.