It’s probably not the best idea to live in your car because that can be dangerous depending on where you park your car. Also it is dangerous if you live in an area that has bad weather or a very hot temperatures or very cold temperatures. However some people have lived in their car for a small period of time in order to save up money to do the things that they want to do.
I believe it’s OK to live in your car for a small amount of time if you need to as long as you don’t have small children because they don’t need to be living in a car. Also it may be difficult if it is a couple who is living in a car. It’s different if it’s just one single person living in a car.