I don't get something in this series In the city you have people mixing with talking animals. Piccollo destroyed whole cities (when he was all evil) and Goku turned into a giant ape and fough "Jackie Chun" who shot lightning out of his hands on world wide TV. Dinosaurs and dragons roam the wilds. Evil aliens attacked and destroyed whole armies.
Yet at the same time often people are surprised when they see magic, monsters, glowing people, and aliens.