Psychology shows that people prefer to face the supermarket queue instead of using the self-checkout.

Written by Andriely Medeiros de Araújo

Published on 05/05/2026 at 13:15

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The preference for traditional supermarket queues, even when self-checkout terminals are empty, puzzles those seeking maximum efficiency. However, this behavior is explained by psychology as a fundamental human need for recognition.

In a world increasingly dominated by digital processes, avoiding self-checkout becomes a silent way to ensure that the individual is “seen” and validated by another person.

This phenomenon occurs daily in urban centers, where the moment of payment ceases to be merely a financial transaction and becomes a space for social exchange indispensable for mental health.

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The invisible value of human micro-interactions

Unlike machines, which operate under a logic of coldness and speed, human service provides what experts call micro-interactions.

These are quick contacts, like a greeting or a casual comment, which have a disproportionate impact on the consumer’s mood.

According to studies conducted by Nicholas Epley, from the University of Chicago, interacting with strangers in routine tasks increases the feeling of happiness and social connection.

By avoiding self-checkout, the customer is unconsciously seeking an emotional break from the accelerated routine.

This interaction, however brief, activates brain mechanisms of well-being that touchscreens cannot replicate.

For many, this moment at the supermarket checkout can represent the only real human contact in a day surrounded by automations.

Você prefere a fila humana no mercado? Entenda como evitar caixa automático está ligado à psicologia do bem-estar e à busca por conexão social. — Do you prefer the human checkout line at the supermarket? Understand how avoiding self-checkout is linked to the psychology of well-being and the search for social connection. (Illustrative image only)

The psychology of “weak ties” and belonging

Sociology and behavioral psychology use the concept of “weak ties” to define the light connections we maintain with people outside our intimate circle.

Researcher Mark Granovetter demonstrated that these superficial contacts are essential pillars for emotional stability and a sense of community.

Check out why these moments are so valued by consumers:

Mutual recognition: The act of looking into each other’s eyes and exchanging greetings humanizes the purchasing process.

Breaking isolation: Small conversations help combat loneliness in large cities.

Social rhythm: The spontaneity of human service gives a less mechanical rhythm to daily life.

Feeling of support: The presence of an employee conveys emotional security in case of any problem with the products.

Therefore, choosing the conventional queue is a strategy for preserving mental health, ensuring that technology does not completely erase interpersonal relationships.

Mechanical efficiency vs. emotional health

Although self-checkout systems were created to reduce waiting times, they eliminate what is called “social friction.”

This term refers to the imperfect, yet warm, exchanges between people. By removing this contact to gain minutes of productivity, companies end up removing elements that support customers’ long-term well-being.

Psychology suggests that the obsession with speed can be costly for the human mind. Moments considered “unproductive” in the supermarket queue are, in fact, spaces where empathy and kindness flourish.

Therefore, avoiding the self-checkout is not a sign of lack of technological skill, but rather a prioritization of the quality of the human experience over the speed of the checkout.

With information from Gazeta de SP

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Psychology shows that people prefer to face the supermarket queue instead of using the self-checkout.

The invisible value of human micro-interactions

The psychology of “weak ties” and belonging

Mechanical efficiency vs. emotional health

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Psychology shows that people prefer to face the supermarket queue instead of using the self-checkout.

Do you prefer the human checkout line at the supermarket? Understand how avoiding self-checkout is linked to the psychology of well-being and the search for social connection.

The invisible value of human micro-interactions

The psychology of “weak ties” and belonging

Mechanical efficiency vs. emotional health

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Desert sand, previously discarded for being too smooth for concrete, becomes an ecological brick in the United Arab Emirates, dispensing with Portland cement, curing at room temperature, and attempting to transform dunes useless for construction into raw material for a new arid engineering.

He transformed an abandoned plastic water tank into an underground house in the “hobbit hole” style, using only repurposed pallet wood, without heavy machinery or expensive labor.

China transforms desert-devastated area into the world’s largest artificial forest, planting trees for 60 years, blocking sand that reached Beijing, and creating a “green lung” of 92,000 hectares in a region once considered lost.

Toyota launches “family hybrid van” with 7 or 8 seats, 1.8 hybrid engine, fuel consumption of up to 23.8 km/l, and a price equivalent to about R$ 104,000 without taxes, below the Tiggo 8 Pro Plug-in Hybrid sold in Brazil: meet the Noah Hybrid 2026 in Japan.

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