What is the legal age to purchase a knife in California?
Depends on where you live in California and where you buy it.
Most businesses require a minimum age of 18 for
purchase...sometimes it is 16. This is to limit liability to the
business and lawsuits from others with the idea of protecting
children. While there is no restriction of age in CARRYING a knife,
municipalities, cities, counties, businesses limit purchase to
those more of an age to be considered responsible for their
actions.