we have very often seen the reality that is happening at this time where a lot of miners have lost everything because they are in the crypto world even though the last few years bitcoin investment is very promising where a lot of people become millionaires because they invest in bitcoin in the long term so that it is different from today, we have absolutely no idea why it could cause them to lose everything, is the crypto world less promising, we hope that this is only temporary and the digital currency will soar again as it has in the last few years
your comparison is wrong because if you are not greed enough in crypto then you will never experience such kind of losses like what OP mentioned above because the smaller profit you can take is the brightest and safest you can have in this market.
I have been seeing many friends and colleagues that whos trading with small target income and yes they are successful , because the only problem here is when you start seeking for high and high value of your trading and that will end being a loser , so stop greediness and you will benefit surely .