Why is self defense so important when going out alone at night list and state the facts

Someone could grab you from behind, or snatch an item you have, making you fall over. They could attack you. If you were walking alone some bad stuff could happen so make sure to try to have a taser or pepper spray or both.  More than 460,000 children go missing every year, 2018 saw 5,070 adult and 2,378 child cases. Every year, 600,000 people go missing in the US, and In 2015, only 0.1% of missing children cases were the result of stranger abductions.

what are the choices?