McDonald's self-service machines aren’t here to save you time… they’re here to make you spend more.
- Two Teachers
- 10 hours ago
- 3 min read
Walk into McDonald's and the self-service kiosks look like a simple upgrade. Faster ordering, fewer queues, more convenience.
But from a behavioural psychology and business perspective, they serve a much more strategic purpose.
They are designed to influence how customers make decisions and ultimately increase how much they spend.
Slowing the customer down increases spending
Traditional counter service creates time pressure. Customers feel rushed, which leads to quicker, simpler decisions, often sticking to what they already know.
Self-service kiosks remove that pressure entirely.
Customers:
Take more time
Browse more options
Explore categories they wouldn’t normally consider
This increased interaction time directly correlates with higher spending. The longer someone engages with a menu, the more likely they are to add items.
Choice architecture drives decisions
The layout of a kiosk interface is not neutral.
Items are deliberately positioned to guide behaviour:
High-margin products are placed prominently
Popular combinations are surfaced early
Less profitable items require more effort to find
This is known as choice architecture, structuring decisions in a way that nudges users without restricting them.
Customers feel in control, but their choices are being subtly directed.
Incremental upselling is more effective than large jumps
Rather than encouraging one large purchase, kiosks break spending into smaller decisions.
Common prompts include:
“Make it a meal”
“Add fries for £X”
“Upgrade your drink”
Each option appears low-cost in isolation.
However, this leverages a key psychological principle...
People are more likely to accept multiple small increases than one large increase.
This significantly raises the average order value without creating resistance.
Reduced social friction increases willingness to spend
At a staffed counter, customers may feel:
Judged for their choices
Rushed by staff or queues
Self-conscious about ordering more
Kiosks remove this entirely.
With no social interaction:
Customers feel more comfortable exploring
There is less hesitation when adding extras
Spending becomes a private decision
This leads to more indulgent purchasing behaviour.
Interface design creates a reward loop
The kiosk experience is intentionally smooth and responsive:
Clear visuals
Simple navigation
Fast feedback after each selection
This creates a positive feedback loop:Action → Response → Satisfaction
This type of interaction keeps users engaged for longer and encourages continued decision-making, increasing the likelihood of additional purchases.
The illusion of control
One of the most important aspects is perception.
Customers feel:
In control of their choices
Less pressured
Free to decide
However, every stage of the process, from layout to prompts, has been carefully designed to guide behaviour.
This balance between freedom and influence is what makes the system so effective.
Why businesses implement these systems
From a business standpoint, self-service kiosks deliver multiple advantages:
Lower labour costs
Faster service throughput
Fewer order errors
Increased average transaction value
While they improve operational efficiency, their real value lies in their ability to shape customer behaviour at scale.
Self-service kiosks are often presented as a convenience tool.
In reality, they are a sophisticated example of behavioural design in action.
They do not just change how customers order.
They change how customers decide and that shift, from quick, pressured decisions to guided, extended engagement, is what makes them so profitable.
Questions to consider:
Explain how self-service kiosks use choice architecture to influence customer purchasing decisions.
Analyse why breaking purchases into smaller add-on decisions (e.g. upgrades) increases the total amount a customer spends.
Extension: “The use of behavioural psychology in self-service kiosks to increase customer spending is unethical.”
To what extent do you agree with this statement? Justify your answer.
