1.Your student needs this to learn how to live independently and deal with life as it comes on his or her own
2.Ensure that you make plans beforehand instead of just dropping by for a visit. This shows that you respect their new lifestyle as you would any other adult who may have plans.
3.Similar to visiting too often, you want your student to get the full college life experience. You certainly will miss them, but pressuring them to come home on weekends is not in his or her best interest.
4.Your student will likely get frustrated and complain to you about a lot of different things in college, from roommates to studying to finances and beyond.