I don't think there's a better reason to quit any job if it's more profitable than another. Trading can be called a side job that can generate profits, but every trader cannot produce it consistently due to market dynamics. Leaving a job that pays well is not the best choice, unless you are sure that your job does not pay you enough to meet your own needs every month.

I also want to know what you would choose if your job only paid you $100 per month, while you could earn $1000 in trading (at least) each month?
Is quitting the job the best solution to focus on trading or continue working while trading?