My wife and I used a 21 day Eurail pass to visit Ger, IT, FR, Switz in May-June 1983!
This reminded me of my inaugural European travel experience. During the 1986 summer break after a semester at the University of Nice, I finagled a student loophole to purchase a one-month Interrail pass so I could visit classmates in their home countries. As noted in
the current intro video, the pass was specifically for Europeans and UKers, and back then cost approx. half of a Eurail pass if you were younger than 26.
No smartphones in the mid-80s so you entered the itinerary by hand into the booklet ("do not use a pencil!") and got it stamped. I don't recall reservation requirements or surcharges for any trains except the French TGV so it was easy to hop on and off as you pleased. If you didn't know anyone in a specific city, the time-honored move was to take an overnight train to avoid paying for lodging.
I got a ride from Nice to Rome and activated the pass there:
1. Rome to Florence
2. Florence to Nice
3. Nice to Regensburg (Bavaria)
4. Regensburg to Copenhagen
5. Copenhagen to Düsseldorf
6. Düsseldorf to Brussels
7. Brussels to Hamburg
8. Hamburg to West Berlin
9. I got a ride from Berlin to Regensburg
10. Regensburg to Graz, Austria
11. Graz back to Nice to pick up my belongings
One last photo op in Nice (cosplaying with a prop cigarette):
A tearful goodbye with my GF and a roommate:
12. Nice to Milan
13. Milan to Brussels Airport
People Express to Newark and onward to Denver/Boulder:
That's how it was done.
