The financial literacy myth: knowing isn’t doing 

There’s a comforting story we like to tell about money: that if people just knew more, they would do better. Financial literacy, in this telling, is the master key that unlocks a better future. Just teach the basic concepts to as many people as possible, and better outcomes will follow.

Over the past month, as part of Financial Literacy Month, we’ve explored the mechanics of good financial behaviour: managing debt, building a budget, setting aside emergency savings, and creating a financial plan. These are all essential. But the inaugural findings from the Franc Wealth Index challenge the idea that knowledge alone is what moves the needle.

Most people already believe they know enough.

Two-thirds of respondents rate their financial knowledge as intermediate or above. Yet only 13% have built up emergency savings equivalent to three months’ income. That gap, between what we know and what we do, is where financial wellbeing is won or lost.

If knowledge were the primary constraint, we would expect those who understand money to consistently outperform those who don’t. But the data tells a more nuanced story. While financial knowledge does improve saving and investing behaviour, the uplift is modest for foundational behaviours such as tracking your expenses, managing your debt, and saving for retirement. Knowing more helps – but not nearly as much as we assume.

What matters far more is everyday money habits.

Rethinking financial progress

The Franc Wealth Index highlights four keystone habits: how you invest, how you budget, how you prepare for retirement, and how you manage your debt. Together, these behaviours have an average odds ratio of 3.1 in determining overall financial wellbeing. By comparison, education level comes in at 1.6 and income at 1.85. What you do with your money matters significantly more than how much you earn or how educated you are.

That finding should reframe how we think about financial progress in South Africa. We tend to focus on income as the primary lever to financial prosperity: earn more, and everything else will follow. But income without disciplined habits has a negligible impact. It’s easy to spend more. A higher salary can just as easily fund a more expensive lifestyle as it can build long-term wealth. Behaviour is what determines which path you take.

The behaviours that matter most are not complicated.

Pay yourself first. Track your spending. Keep your debt manageable. Save consistently for retirement. These are not advanced financial strategies; they are simple, repeatable actions. Yet they are also the hardest to sustain. Not because they are intellectually demanding, but because they require consistency, restraint, and a willingness to prioritise the future over the present.

This is where the conversation around financial literacy often falls short. We focus on teaching concepts such as compound interest, diversification, and inflation, without paying enough attention to the systems and habits that turn those concepts into action. It’s the difference between knowing that exercise is good for you and actually going to the gym three times a week. One is cognitive; the other is behavioural.

The Franc Wealth Index data underscores this distinction. Even among those with higher financial knowledge, the improvement in key behaviours like budgeting and debt management is relatively small – about 1.6 points on a 10-point scale. The gap between those who practise strong financial habits and those who don’t is far more pronounced. Knowledge might nudge behaviour, but it doesn’t guarantee it.

So if knowledge isn’t the bottleneck, what is?

The hard ask of good behaviour

Part of the answer lies in friction. Good financial habits often require upfront effort: setting up debit orders, tracking expenses, reviewing budgets, and making deliberate trade-offs. Bad habits, by contrast, are frictionless. Spending is easy. Credit is readily available. Lifestyle upgrades are socially reinforced. Without intentional systems in place, the path of least resistance tends to lead away from financial stability.

Another part of the answer is psychology. Humans are wired for the short term. We discount future rewards in favour of immediate gratification. Saving for retirement or building an emergency fund competes with very real, very present wants and desires. Knowledge doesn’t eliminate that tension; habits help manage it.

This is why the most effective financial strategies are often the simplest ones that reduce reliance on willpower, such as automating investment contributions and ring-fencing emergency funds. These are not just financial tactics; they are behavioural tools. They make the right choice, the easy choice.

As we wrap up this Financial Literacy Month series, the emphasis needs to shift. By all means, let’s continue to invest in financial education – but it’s not a silver bullet. The real work of building wealth happens in the quiet, repetitive actions that rarely make headlines. It’s in the monthly transfer to your investment account, the decision to stick to a budget when it would be easier not to, or the discipline to pay down debt instead of rolling it over.

These habits don’t require perfect knowledge – they require sustained commitment and discipline.

Financial wellbeing is less about what you know and how much you earn, and more about what you consistently do. In a country where most people are struggling to get by, the next frontier isn’t education – it’s execution.

Thomas Brennan is a co-founder of Franc, a South African fintech that helps people invest easily and affordably.

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