Inference in Frost's 'The Road Not Taken'

In the poem “The Road Not Taken” by Robert Frost, the speaker reflects on a moment of decision in a forest where two roads diverge. As he contemplates which path to take, he feels the weight of his choice, recognizing that it will shape his future. The speaker ultimately chooses the road less traveled. This moment serves as a metaphor for life's choices and their long-lasting implications.

Considering this context, what can be inferred about the speaker's attitude toward his decision as he reflects on it later in life?