Skyline High School had a teletype terminal by 1978. I think it connected to the University of Utah, though I am not absolutely certain. But that was a long way below a T1 line...
I recall in the late 70s that my high school also had a teletype terminal and an IBM card reader that connected to a mainframe for the whole school district. As a student I had some awareness that it was unusual. I was also working PT at a Radio Shack at the same time and saw the first arrival of a TRS-80 to our store.
Despite that early exposure to computing technology I went other directions for the next couple decades.
