However, it seemed that the old man's hope was dashed.
Because Batman in the movie was too much like an ordinary person.
He was a vigilante that fought criminals, and the criminals in the entire Gotham City all had to hide because of his fierceness.
And yet, threatening those criminals and beating them up with fists couldn't eradicate crimes in Gotham City at all. Batman's behavior of fighting violence with violence was also a crime in itself.
So, Batman knew that once the entire Gotham City lost him, the wise criminal organizations would resurface, making the whole of Gotham City fall into the control of these criminals.
Batman didn't have superpowers. He wasn't Superman. He could be injured and could feel pain. As he went out to fight crimes every night, there were more wounds and scars on his body.
The old man understood the concerns of Alfred, Batman's butler, very well.