Walking with a Russian blue cat - no leash

I often see videos of people walking their cats on the leash. But how about walking a cat with no leash? Some time ago, I used to see an elderly lady walking on the street nearby the place where I live. And her cat just followed her. I don't see them any more. But I now have my own cat. I take him for trips to the woods. And I walk with him with no leash.
Clark, Caspian
Breeder: Ojos del Salado, Torun, Poland; Born: November 27th, 2017.

Видео Walking with a Russian blue cat - no leash канала TheUltimateFIASCO