Can you turn coins into cash?

Could you please elaborate on the process of converting coins into cash? Is it a straightforward and secure procedure, or are there certain steps and precautions one should take? What are the typical methods or platforms used for this conversion, and how do they differ in terms of fees, speed, and reliability? Additionally, are there any limitations or restrictions that one should be aware of when attempting to turn coins into cash, such as minimum or maximum amounts, or specific types of coins that are not accepted? Lastly, what advice would you give to someone who is new to the world of cryptocurrency and looking to cash out their holdings for the first time?