No, the speaker does not feel that he has made a wrong decision by taking the road less travelled. The poet wanted to explore both the roads. He tells himself that he will explore one and then come back and explore the other, but he knows that he will probably be unable to do so.
Question 3:And that has made all the difference. What is your opinion of the difference- was it for the better or the worse? Substantiate your answer.
Answer: The poem does not clearly state whether the choice made by the poet made him happy or sad. However, if examined the way of the world, we find that the individuals who have achieved recognition and fame have always eschewed the beaten track. Hence, we can reason that the poet-traveller was made happy by choosing the less travelled path, not the beaten track. The concluding line of the poem “And that has made all the difference” connotes the poet’s joy.