Design has an impact. It can not only influence how you feel but it can also shape the decisions you make.
For example, in a coffee shop we’re all more likely to select the middle option when it comes to the size of our coffee. It’s called the compromise effect. We prefer the middle option, avoiding extremes and risk, and this experience has been designed with this in mind.
Changing behaviour can be hard as habits are ingrained. But behavioural design can support this change. It’s all about how we present choices within a design.
— Daniel Kahneman