BART crime is up over the past decade. People don't avoid BART because of that headline with the chainsaw man. They avoid it because of everyday crime and violence.
I'm sure it's similar for many other metro transport options in the USA. California in particular has a rough go for many reasons.
It doesn't even have to be something bad or happen to you. One "my buddy had his bike stolen off the light rail" and several people will be turned off of ever trying to use it.