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.
A mixture of misinformation, lack of knowledge and most devastatingly, a lack of interest in learning about it. Most people just want to make a quick buck by investing small and selling when the price goes up, which is ok. But at the same time, it's the people who don't know what they're doing who are the ones who never really get the hang of it completely, and eventually end up backing out.