When a friend of mine (from a well-off family) graduated high school around 2000, her grad party invitations included a sample of things she needed for her dorm and a note of
where she was registered.

When I was graduating, I asked my mom if I was supposed to be registered somewhere and she said "Absolutely not. That was not how things are supposed to go but I didn't want to talk about her at the time because that was your friend."