I think it can be the both,some persons see it as a lifetime job,while some persons do not see it as such,but for those who see it as a lifetime job,they are the ones who go extra mile to knowing more things about trading.They lose more,get more experience and try new things about trading Because they believe they want to earn a living through it.While these other set of people who assume trading is not a lifetime job only feels it is right to trade at their convinient,and to trade when they have no pressure on them,and with a lesser amount.They believe trading is more risky that we can immagine.
Maybe there are those who trade as their main source of income. perhaps they even only earn income from trading. but maybe one of the family members has to help to meet the needs. meaning there are other people who also work in the family.
when a trader has to meet his needs every day, it means he is trading under pressure. and it requires extraordinary calm to make money every day. Maybe you don't have to trade every day, but you definitely have a target to achieve certain profits.
Exactly, I like your idea above, that making trading as the only place to earn means that the person will trade under pressure, while it is very clear that every trader is required to always have a good level of calmness in order to maintain mental and psychological. This means that making trading the main job to support all the needs of life is too risky, which is clear that in trading it is not only about profit opportunities but the risk of loss will always be a part that sometimes cannot be avoided completely.
What this means is that I really can't imagine when someone makes trading the main place to make money because basically the name of necessity will never be tolerated, meaning that when you need money for anything like buying food for your family then what if it turns out that you have a loss in the trading session that you do? of course that can be a problem. I understand that there are many people who can indeed become rich by trading, but make sure that before you become an experienced enough trader you should not leave your main job.