Even a lighter and a space blanket means that you have the means to build a fire (or three), and wrap a windbreak around your shoulders and lap, that is a great start to surviving a night and in most conditions, it means getting most of a nights sleep.
Still need skills to build that fire. I’ve seen the untrained try to start a log with some paper and a lighter. No kindling, no small sticks, etc.
My point was that developing the skills is just as important and perhaps more important than having the tools.