Why did Valli not want to look at the sights in town alone?

Why did Valli not want to look at the sights in town alone?

Answer: The conductor had asked Valli if she did not want to see the town. She replied that she was too afraid to go and see the sights alone in the town. The conductor reminded her that she was travelling alone too by bus. Valli told him that there was nothing to be afraid of in the bus.