Had that exact experience where an old friend suddenly reached out to me, i was happy i get to talk to him again but apparently he wants to put me on some kind of pyramid scheme.
I will never understand people wanting to go back to school : those years were maybe the worst ones of my life and almost every friend I made during that time are mostly strangers to me now.
The last "old friend" that I found in the wild had his kid with him... and she was at least 5 at the time given her size. It was a very awkward conversation to say the least, given my position in life atm.