In the colorful world of human interactions, our brain is constantly processing, analyzing, and categorizing information. It often relies on a method that is both efficient and problematic: thinking in boxes, also known as stereotyping. But why does our brain tend to sort people and things into predefined categories, and what impact does this have on our coexistence?
The Brain as a Master of Categorization
The human brain is a marvel when it comes to processing complex information. To cope with the flood of impressions, it uses various mechanisms, including categorization. By identifying similarities, objects—and even people—are mentally grouped. This grouping helps the brain work efficiently and make quicker decisions based on past experiences.
Prejudices and stereotypes arise when these categorizations are applied to social groups, leading us to “box” people based on certain characteristics. These mental boxes, or stereotypes, can be based on gender, age, education level, occupation, or origin. For example, when we categorize someone based on their appearance, we automatically associate certain assumptions about their personality.
Ageism: Age as a Stereotype
One common example of stereotyping and prejudice is age-related bias. Age stereotypes are widespread and can affect both younger and older people. A typical prejudice is that young people are irresponsible, lazy, or inexperienced. They are often perceived as overly reliant on technology and lacking respect for older generations. These stereotypes can lead to young people’s skills, contributions, and opinions being undervalued in various contexts, such as the workplace.
On the other hand, there is a common belief that older people struggle with technology or are less mentally flexible and capable of learning than younger individuals. Older employees are sometimes seen as less productive or innovative, which can negatively impact their career prospects and societal standing.

Causes and Consequences of Prejudices
Prejudices do not arise by chance; they are systematically produced and maintained. They result from social, cultural, and personal influences that shape our perceptions and thought processes. Stereotypes and prejudices are often formed, reinforced, and passed down through upbringing, media, and personal experiences. Once established, they unconsciously influence our perception, attitudes, and behavior toward others.
Although categorization is a useful function of our brain, thinking in rigid boxes comes with many problems. Prejudices can lead to discrimination, exclusion, and conflicts. They prevent us from seeing and appreciating people as individuals and can strain interpersonal relationships and social cohesion.
The Path to an Open Society
To reduce prejudices and promote an open, tolerant society, it is essential to recognize and critically examine our own stereotypes. Education and awareness play a key role in this process. By engaging with diverse people, questioning stereotypes, and actively opposing discrimination, we can learn to look beyond our biases and approach others with an open mind.
Prejudices and stereotypes are deeply ingrained in our thinking and often unconsciously shape our actions and attitudes. By becoming aware of these mechanisms and actively working against them, we can contribute to a more open and just society. It is up to us to open the boxes in our minds and see people for the unique individuals they truly are. In a world shaped by diversity and differences, it is more important than ever to meet each other with openness and respect.