If you are an employee or a businessperson who is considering transitioning into trading, it is essential to ensure you have sufficient funds to cover your expenses for the next few months, whether you are married or single. The amount required depends on your living costs; for example, calculations for 6 to 12 months ahead. This is necessary so that if you encounter the worst-case scenario in your trading activities, you will have a more peaceful life because you already have a contingency fund to support your family for several months. This is often overlooked by beginners.
In order for the person not to be in any mess or face any financial problem such as being bankrupt, they don't have to trade with with all their salary, you already said that the person could have a job or be running a business which mean that they already have a consistent source of income, therefore they just need to have a specific amount that would be allocated to trading for that month and if they lose the money because of the high risk, they can wait until they have enough money to deposit before they start again. If they want to keep depositing and blowing their account, that's when they will have financial problem and if they don't have any money again, they start to starve since they didn't stack up like your statement explains. With right financial management, there will be no need to fear.
What needs to be considered is expectations in trading. If you have relatively little capital, don't expect to get rich quickly because that will be destructive
An ads interrupted my video yesterday and the ads was from a trading guy that said trading is very simple and that anybody can make millions of deposits with just a minimum $10 deposit, some traders are convinced by those ads that's why they expect such profit from their small capital.