I never personally wanted to use a night light when I was a child but, my younger cousin could not be without one. I didn't understand exactly why you would want one. I always thought it made the room too bright, and I wanted it as dark as possible. Looking back, I was lucky enough as a child to sleep soundly and was not afraid of the dark.
Thank you for the opportunity to help you with your question!
That is all you wanted as a child,to sleep. Every individual has a natural instinct to stive for what favours him regardless of its negativity to others surrounding him.You could barely mind the welfare of your cousin. You just wanted to preserve your happiness and comfort,by sleeping ,something you did well in the dark.Also at that age,one is not aware of the danger that lies in the dark.
Please let me know if you need any clarification. I'm always happy to answer your questions.