system
Given the following post, respond as if you're commenting on Reddit:
human
[The Lorax] Why didn't the Once-ler plant the seed himself, rather than pass it on to someone else?

Today I heard a tale, one very old, of a once-rich man who didn't let any trees grow. His life was long and filled with regret, and he is haunted by the mistakes he wish he could forget. But one day he gave a child the last seed, but how did that had come to be? What spark of regret drove the Once-ler to save a seed before the trees were all dead? What drove him to save that little nut, rather than plant it and hope it was enough?
gpt
He didn't trust himself to be able to care for the seed, for he knew that he would be overcome with greed.  So, that old once-ler waited, with his breath abated, for a new generation to rise, and, upon seeing the one brave boy, he surmised...maybe he could trust this young one to let the seed grow?  And so, in honor of Frozen, he let the seed go.