How do you get a sim from university to move into your normal world

There seems to be a problem with peoples understanding of University Life let me try to explain as someone pointed it out too me.

Since WA came out before they switched to base game patching. Some people may have the ability invite and talk long distant friends. This options came with World Adventures. So did the accelerated story progression. If you do not have World Adventures installed you will have to wait until the University students will eventually move into your base neighborhood after graduation.