Children are old enough to go to college, so they should be independent and learn to make their own decisions. This is a place for children to grow up. Parents coming to school to see their children have the following advantages:

Parents can learn about their children's life in college and feel at ease.

Children can feel the relationship between their parents and promote their feelings.

But there may also be bad places:

Some children feel that they are all college students, and their parents have to take care of them like children, and they feel humiliated in front of them.

Parents are too worried and scared to see the difference between the school accommodation environment and the family environment.

In short, I think it doesn't matter if parents come to visit the school after the children go to college for a period of time, it mainly depends on the parents' and children's ideas. If parents really don't have time, there is no need to go. If the child asks, it is best to discuss with the child before deciding whether to go or not.