Abstract
While cash is often debated in terms of convenience and legality, this study uncovers its lesser-known cognitive, psychological, and developmental benefits. Drawing from neuroscience, behavioral economics, and pedagogy, we show that cash activates neural pain circuits that inhibit overspending, enhances budgeting skills through tangibility, and plays a foundational role in financial literacy for children. Through comparative frameworks and interdisciplinary research, we argue that eliminating cash may have unintended consequences for personal finance, education, and equity. These findings invite a reevaluation of physical currency in a digital-first economy.
Key Highlights
- Cash activates the insula, triggering a cognitive “pain of paying” that discourages impulsive spending.
- Cash enhances self-regulation and budgeting via tangibility, fostering cognitive and emotional control.
- Digital exclusion risks magnify when societies eliminate cash, affecting the elderly, poor, and neurodiverse.
- Children develop stronger financial literacy when they engage with physical money compared to digital equivalents.
- Cash has symbolic and ritual value, reinforcing social bonds (e.g., gifting, tipping, donations).
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