If source of income is a problem, then you are not good to go in to trading. Trading is not just about having capital to trade, the market is risky and anything can happen to your capital and if you eventually lose how do you intend to continue with the trade?
Are you saying without source of income trader will not make it from trading? I have seen many traders who became successful in trading without having sources of income before going into trading that is attracting other traders. I will not deny the fact that it will take some traders without no source of income long time to achieve their goal from trading.
Apart from newbies, I don't think there are traders who don't know there is a risk to take in crypto trading, because the moment you enter the market to start trading your mind will surely remind you the risk you are taking and you will not blame anybody for anything that will happen to you.
People who have a better experience in trading quit from their job to become a full time trader and they have trading as the only source of income. It is not advisable for anyone to trade without having a source of income be it experienced or beginners because in trading anything can happen, and if anything happens you always have source of income that you can always rely on. Trading is very risky and you can't predict the market, because of this it is not safe to rely on just trading.
It would be a total suicide if you would be quitting your job directly even if you saw yourself that not still profitable with trading. Come to know that it would be that taking up for some long time and tons of efforts on which this isn't something that can be achieved in a shortened time. That's why it's recommended that you should be making it first as some sort of side income aside from your main job. Never rush up yourself on trying out to go full time if your skills isn't that enough. Always be that having that realistic approach and treatment rather than on making yourself delusional.
I definitely agree with you, quitting your job for trading is definitely a huge mistake, if you are not experienced enough in trading, and in that case quitting your job will definitely lead you to a negative direction in all aspects, you will be under huge financial pressure and then you will also be mentally broken, in short, many negative situations will come in your life because of this mistake.
So i definitely agree with you that, the best thing is, instead of thinking about quitting your job, you should develop trading as a side income source along with your job, you cannot consider yourself skilled here by earning a little profit in trading for a while, because a strategy never works in the long run, even if you are profitable now, you will face losses later, because an experienced trader is never invincible, even a trader with a lot of experience faces a lot of losses.
So quitting your job can never be right, I think you should first keep trading as a side income source for at least five to six years, then when you gain experience and deep skills through it and become a skilled trader, then such big steps can be taken like quitting your job, but that too has to be done through a very realistic and consistent plan.