Most of the persons thinking about bitcoin scam. But most of the persons Don't knowlages about Bitcoin. So before use the Bitcoin. We need to improve the knowledge. Knowledge is help to avoid thr scam. Dollar is easy use and reach the every where. Dollar is good one. But bitcoin is best investment.
Misunderstanding and misconception has always been the reason for individual lack of interest in Bitcoin investment, having said that, I don't think that it is a good idea to call some stuff a scam when you have not been into the system, people do this all the time, I agree with you that there should be increase in individual awareness and knowledge to avoid being scammed in the system as you said but I want you to also understand that people believe what they feel that's real for them, once individual mindset is biased about an investment such person fails to put interest in anything concerning that invest so once he or she hear anything relating to that investment he will discourage people about it, so I see this as ignorance, you don't know something until you are interested and a little trial will convince us towards the efficiency and transparency of the said investment, some person may prefer dollar because of reason best known to them but the truth is that Bitcoin surpass every other currency both in value and in other aspects.