Trading is unique profession in the world, where easy money is earned the hard way.
In no other business, you can scale in so fast, and really stand a chance to make 100-1000x.
But uncertainty, risk, emotional upheaval makes this business extremely risky and Probability of success making even 5-10x impossible for most of the beginners.
From execution risk to market risk, there are so many hidden and unaccounted risks lurking in the dark to catch a trader by surprise.