Congrats. Hope he and you and the whole fam enjoy the experience.
My HS gf and I both went to PSU. Her father told her that there was a good chance that on her first day there, she would meet someone who would be her friend the rest of her life. I don't know if that happened for her or not, but I thought it was profound (I didn't think of it in those terms at the time, it more like a 'hmm.' for me.... teenage for profound, perhaps). It stuck with me all these years.
It did not happen for me. But, I told my daughter the same thing leading up to her first day at PSU as a freshman, and sure enough, she and the girl in the dorm room next to hers met that first day in 2010 and have been very close friends to this day. And as of now, it looks like that bond will last for a very long time.
Here's to the same good fortune happening for your son.