Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

What is the rationale behind brokerages establishing tiers/levels for options trading?
The different levels are somewhat related to levels of risk. Writing a covered call is pretty low risk, in the sense that if I buy the stock but sell a call, I now have a lower cost for the stock, and however low the stock drops, I'm still slightly better off than the regular stock buyer. Covered call writing is often used to generate premium income from a stock portfolio, and less as a tool for speculation. Buying a call or put is simpler in execution, but the risk of losing the entire amount spent (I actually avoid the word invested here) due to leverage involved isn't just a possibility — it can be pretty likely depending on the strike price. Put writing and uncovered (naked) call writing can entail even higher risk relative to the premium received — consider extreme moves in the underlying to understand the potential losses involved. The more sophisticated trades are presumed to take a bit more experience and tolerance for risk and each broker has its own set of criteria to allow the client to trade at each level.