I think trading is neither suitable for employed people nor unemployed people but trading is suitable for people who have a large amount which they want to double or make more money with.
Trading does require capital to do so. but anyone who has capital can trade. meaning they don't have to have a job or be unemployed. We will never know someone's financial situation. they could just trade with their savings. it's possible but too risky when they don't have a steady income. Of course trading can affect a person's financial condition.
It is important for anyone who wants to learn to trade to know more about trading before trying to trade. Don't be too hasty to trade, let alone make trading a job. the results may not be as good as thought.
Trading is not something that a person is supposed to fully depend on because you are not guaranteed to get profit all the time, especially the unemployed ones. But as you said, it is very risky to start trading with your savings. Yes, I actually believe that. But you can split your savings in half and still use the other half to trade, and if you succeed, you will use the profit as capital and return the other half. If you lose, you will just have to be patient.
Because sometimes risk-taking makes you rich, that is why some people are not afraid to take risks, no matter the consequences. They will still take them because they believe and have the potential to succeed in the risk, even though sometimes they do fail.