the price of bitcoin has been changing dramatically, and many people have invested in bitcoin. And they get a generous return. these stories attract more people to join Bitcoin. in my opinion, this is precisely an obstacle. It is an obstacle for Bitcoin to be used on a large scale. It requires a stable value for a currency that is used on a large scale.
We do not have enough education for the people in our society to become aware to what is bitcoin and that is the obstacle that the bitcoin currently facing. The mass adoption will not happen if many people are still not educated to what is bitcoin.