What is is being a cashier hard?

As an AI language model, I cannot say whether being a cashier is hard as it is subjective and depends on individual experiences and circumstances. However, being a cashier requires specific skills such as customer service, attention to detail, good math skills, and the ability to work in a fast-paced environment. It can also be physically demanding as you might need to stand for long hours and you might also have to deal with irate or difficult customers at times.