I think you’re looking at this from the wrong angle.
Someone should only consider becoming a full-time trader when their income from trading equals or surpasses their income from their full-time job – CONSISTENTLY.
Being consistently profitable in trading is tough, and you need to think about how you will cope if/when you don’t make money regularly. Even the best traders have losing streaks that can last weeks.
What’s the backup plan if your trading income doesn’t meet your expectations?