If a movie theater charges different prices for tickets based on the age of the customer, what underlying economic principle is this an example of?

When a movie theater charges different prices for tickets based on age, it is practicing price discrimination. This means they are charging different amounts for the same service, depending on how much customers are willing or able to pay. For example, children and seniors often pay less because they may have lower incomes or less money to spend on entertainment. By offering lower prices to these groups, the theater can attract more customers, which helps fill more seats and increase overall sales. This strategy allows the business to maximize its profits while still providing access to different age groups.