It really depends on the parts of town on both cities.For New York, there s parts of Flatbush and Crown Heights in Brooklyn, Jamaica in Queens, and South Bronx.For Los Angeles, you have East LA, Compton (although it has DRAMATICALLY gotten so much better now than before!) , Inglewood, Bellflower, and Watts.Other than those neighborhoods, New York and Los Angeles are pretty decent and livable cities. Just use common sense and you ll be alright.
New York City is statistically the safest big city in the US. LA, it really depends on where you are. If you stay out of certain neighborhoods, like South Central, you ll be fine.
It depends on what you consider dangerous. It also depends on what kind of preventive measures you take when you are in a big city.
yes! because the crime rate is terrible!