Using a Knobkerrie as a walking stick

I have a friend who walks with a stick. He told me it is sunnah to use a stick. The stick he uses is a knobkerrie.

Learning this I also bought the same stick, because I liked how it looked. I bought it from a traditional Zulu store as that is the most common place to find that type of stick.

Recently I was concerned if the stick had any religious connotations within the Zulu kingdom. I researched it on Google and found that it symbolises leadership amongst Zulu clans etc and is also a symbol of manhood and was used as a weapon in old ages.

Is it okay to continue using the stick for walking or does it count as imitating another nation?