When are people more likely to make complaints?

People are more likely to complain when they receive poor customer service or their product doesn't meet their expectations. If the product quality is not good, or if it doesn't match what they were expecting, they are more likely to voice their dissatisfaction.

I think when people confront the undesirable situation, they often complain about it. For example, in terms of education, when they try to find suitable answers to the questions, they often complain about the exam's hardships. And when they have homework to do, they can often feel frustrated about doing these exercises. Instead of doing [...]