1970. Walked into Alameda Honda and bought a CL450. Rode it home to Hayward, which included a few miles on the Nimitz freeway. I had a few 'moments' in traffic, but pretty uneventful once I got the feel of the clutch and power delivery.
I traded that for a Yamaha 360 enduro a few months later. I actually learned how to ride with it. Within another few months it was stripped and use for D36 enduro events. It taught me all about tank slappers coming off of jumps when the forks bottomed. It ended up a basket case and I gave it to a mechanic plus some cash for a Penton Six Days 125. That was my first real motorcycle.
Thing was awesome and so much faster than the 125's of the day (pre Elsinore and RM).
My next streetbike was a Ducati Superlight 900SS in the 90's. It was after a long layoff. It took me at least two years to get comfortable riding in the street. I did a few track days too, which helped. Since then it's been KTM dual sports.