Final answer:
The discussion method may not be beneficial for training a large amount of individuals at once.
Step-by-step explanation:
The discussion method is beneficial for various reasons, but one reason it may not be beneficial is that it does not allow for the training of a large amount of individuals at once. The discussion method is typically conducted in small groups or classes to facilitate effective communication and participation. In larger settings, it may be difficult for everyone to actively participate and engage in the discussion.