is bitcoin more popular than US Dollar ?
No.But it has started to gain popularity slowly.US dollar has been as Global reserve currency for the past 70 years.Petrol is sold only in US Dollars.US dollars can be exchanged universally in any country.But bitcoi has just crossed its initial eight years.There are more people who dont even have bank account and dont know about credit card and digital transactions.But bitcoin is a digital currency.So it would take years for bitcoin to get popularity more than US dollars.
If we talk about popularity, of course usd is more popular than usd. I agree with you that bitcoin would take years to be more popular than usd becose bitcoin is a new consept of payment system. The politic condition of usa is bouncing when mr trumph elected as president, so the investors are worried about invest in there then makes the inflation higher and the price is dropping, so if we talk about investment and usage, I think bitcoin is better than usd.