There are many reasons why a person might not feel safe walking alone, either at night or during the day. They might live in a crime-ridden area, tend to carry a lot of cash or valuable items such as jewelery or electronics, or simply have a healthy fear of criminal behaviour. For whatever reason, there are measures that you can take in order to protect yourself: self defence classes, always walking in a group of people, not blatantly carrying any valuable items on you or any excess cash.