What does the old man do in "The Bridge Builder" to help future travelers?

In "The Bridge Builder," the old man's primary act of helping future travelers is building a bridge that allows them to cross a challenging chasm. By taking the time to construct this bridge, he demonstrates foresight and selflessness, ensuring that others can safely traverse a difficult path that he himself has already navigated. This act represents a profound commitment to community and the welfare of those who come after him, embodying themes of legacy and altruism. The bridge serves as a metaphor for the support and guidance that one generation can offer to the next, illustrating the importance of creating opportunities for future generations to flourish.