I've never heard anyone say knives are particularly dangerous outside of people trained in how to fight with them. They tend to be pretty damn short to begin with, unless you're sneaking a machete around in your pants (or are you just happy to see me?)

There have been more than a few mass stabbings in China where lots of kids, from people who aren’t particularly trained in knifing people. There was the Wuxi vocational school stabbing in 2024 where 8 people were killed, there is a long list of school attacks, most of them are stabbings: https://en.wikipedia.org/wiki/List_of_school_attacks_in_Chin...

There was also the Kunming train station mass stabbing a decade or so ago, killing 31 people. https://en.wikipedia.org/wiki/2014_Kunming_attack

Note that China does have a pretty low homicide rate, probably since guns are so hard to get ahold of (death penalty for even producing guns in backyard workshops).

I bought a knife a while back and, unfortunately, found out that it is really sharp. It could probably cut through flesh like butter.