The crypto market full of opportunities and profits, is becoming stronger and fuller, people get onboarded every single day. Among this people are those that are interested in profits only, they are not ready for the risk involved while some are fully aware and ready to tackle it by taking calculated risks.
I'm not sure if you are talking about it right because I believe that all people who do crypto and trade (or even just invest) are aware of the risk. If you come to crypto without knowledge, I'm certain you won't stay long and will quit.
These are the people that strive to become a better trader everyday, they seek advice from experienced traders and learn from their past trading mistakes.
They don't just seek advice and learn from their mistakes but rather prove to themselves that they will become a successful trader. And the reason why they stay despite the risk is because they are comfortable doing it and see their bright future.
Why do some traders quit? Because they never find themselves suitable for this, especially those who just want an easy life.