If beginner traders are unable to manage their finances and risks, yet continue trading despite losses, what will happen is financial ruin. Anyone who wishes to trade must first be able to manage their finances. Similarly, for those who want to invest, managing finances will make it easier for us to know the amount we can use for trading and the amount we will use for living expenses.
Given that trading is inherently risky, if a beginner doesn't know how to manage their money but insists on trading, financial ruin could result. In this regard, we certainly need to be able to manage our finances well, and I believe this is a prerequisite for trading to minimize potential losses. In fact, I believe money management is crucial beyond trading or investing, as it can determine our lives.