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.