it is legal where im from and i usually have one in the car or in my pocket. its not a big machete or "crocodile dundee" knife. just a 3.5 inch folding knife. i use it for cutting string, opening plastic packages, makin pb & j, or whatever other mundane task.
If its not ok to openly have one, would having one in a backpack be ok? i mean its not like its even as big as a kitchen knife and i wouldnt have it where anyone could see it. just a random question i didnt see in any of my google searches. i know the rules can be VERY different in different countries
thanks