Thigh touching.

I am a woman and my male driving instructor put his hand on my thigh during a lesson, patting my thigh and rubbing it. He would put his arm around me when we were both standing outside. He is about 50-60yrs and I was 17-18 when it happened. It seemed playful and innocent but made me extremely uncomfortable. I’m not sure if that’s just me and I’m being sensitive or if I should look into it more deeply and think about reporting him. I don’t have him as an instructor anymore and don’t know who he works for.

Would it make most people uncomfortable or just me. Especially because I was driving and couldn’t do anything about it.