You should never expect to get rich through bitcoin or any emerging technology. It is always important to be alert to anything that sounds too good to be true, or is against the fundamentals of economic law.
Bitcoin is a growing area of innovation, and there are opportunities and risks. Even so far, bitcoin has been growing at breakneck speed, but no one can guarantee that it will continue to grow. Any investment in bitcoin's time and resources requires entrepreneurship. There are many ways to make money from bitcoin, such as mining, speculation or new business. All of these methods are competitive and there is no guarantee of profit. Each person should make an appropriate assessment of the costs and risks involved in any such project.
but why do so many people want to know bitcoin, once they see a lot of people get rich successfully and can change their economy better than ever because of bitcoin, maybe they do not think that to be rich and successful would require hard work and extra thinking, they just look from the ease without thinking of the risks that he has experienced.