Why do parents do this? I've seen dozens of them in the last few weeks, standing on either side of their offspring like a couple of pot dogs... Why are they there? The decision of which university to go to is not theirs, it has nothing to do with them - these are young adults not babies. It seems bizarrely intrusive to me - I visited all of my potential universities independently, including one five hundred miles away. Nor did I consult my parents about where to go, I informed them of my choice. However, this was a few years ago and my parents put a heavy emphasis on independence.
Let your kids do this alone - it has sod all to do with you now.