Wish I was as proficient with the hook as I should be. I haven't taken full advantage of the 1 on 1 training offered by a local Kung Fu master. I hope to pick it up again soon. Currently, I'm training with Hilton in various styles, including Filipino stick arts. I would tend to use the cane in line with that training. However, you can use your imagination to see the hooks advantage at grappling distances.
Regarding the walking stick style cane, I believe this attracts far more attention and would might result in a stop at an airport or in certain jusisdictions.
I got comfortable carrying the cane without any feigned limp after taking it to a busy mall on a shopping trip. Nobody gave it a second glance, including the armed security at the jewelry store. YMMV