What are the main disadvantages of using design patterns?

Overcomplexity: Incorrect or excessive use of patterns can make the code more difficult to understand and maintain.

Over-abstraction: Sometimes patterns introduce unnecessary abstraction, which complicates debugging and flow analysis.

Overhead: Implementing certain patterns may require additional code or objects, affecting performance and memory consumption.

"Silver bullet": Patterns are not a universal solution for all problems. An incorrectly chosen pattern can worsen the situation.

Learning difficulty: Understanding and correctly applying patterns requires experience and knowledge. Beginners may find it challenging to grasp their purpose and usage.

Mindless "copy-paste": Using patterns by templates without understanding their essence can lead to ineffective solutions.