Bars tend to be dimly lit. This makes detecting counterfeits extremely difficult. Many retail locations in the US hire young people to be cashiers. These peopl

Bars tend to be dimly lit. This makes detecting counterfeits extremely difficult. Many retail locations in the US hire young people to be cashiers. These people do not have the experience handling cash that older people have. They get almost zero training on what banknotes are supposed to look like. Despite it being illegal in most states to do so, when those cashiers accept a counterfeit bill, the store managers try to take the money out of the pay of those cashiers. My dad had macular degeneration. Towards the end of his life, he had to depend on the large numbers on banknotes. By the time he died, he could no longer read them and had to use credit cards exclusively.