Here are some reason why people avoid bitcoin:
1• illegalize: those people avoiding bitcoin are those people that leave in a country, that bitcoin is not legalized which they don't have any idea on bitcoin, than to see bitcoin as a scam currency. Many of them are use to fiat money in their country which they always use it for all investment in the country.
2• digital currency: many people in the country are use to fiat money in the country which they don't have any idea on digital currency which is all about online transaction fast and steady in the area of transaction which doesn't involve any third party.
3• uneducated: many people are avoiding bitcoin because they don't know how to read and write, that is the reason why they are avoiding bitcoin in the country.