Though true, but it's still better to let anyone one who's interested in trading to know what his up against. Trading is risky but a lot of people still makes it from trading. That's because they didn't give up even in their hardest times. Having the right mindset is what would push you forward. Trading can't make you rich, it will only makes you profitable. I guess that's where alot of persons miss it. When you finally become profitable, you look at your past and try to imagine the footsteps you took to get there and find out that it wasn't easy at all.
It is not clear to me why you think that trading can not make one rich, but profitable. For me, Rich simply means having wealth, while "profits" is what makes you become rich, and "rich" is a great deal of money, abundant wealth etc.
I think that trading can make one rich, it all depends on certain factors like, volume of trading capitals, strategies, patience and your knowledge and experiences of the crypto market. In facts many people on the community has already become cryptocurrency millionaires trading crypto over the past one and half years.