I made my own "trekking poles" in the 1970's out of ski poles back when no one was using them. I did a few backpacks with them before I went back to a single staff. I just don't like having two objects in my hands unless I need to (snowshoeing/skiing).
After using a walking staff for years, I switched to a cane about 30 years ago. I prefer it over anything else. It gives me the necessary "3rd point of contact" for safety/stability/support, but leaves my other hand free (which is especially handy when carrying a rifle). Think of it as an ice axe like tool for a walker rather than a climber.
As I said earlier in the thread, I still have a pair of BD Carbon Cork Trekking poles, but I doubt they will ever replace my Komperdell Cane.