What are the disadvantages of using design patterns?

Disadvantages of using design patterns:

• Overcomplication: Using patterns can be excessive for simple tasks, increasing code complexity without clear benefit.
• Tendency to abuse: Inexperienced developers may apply patterns where they are not needed, complicating maintenance and understanding.
• Additional learning time: Proper application of patterns requires time to learn and understand their context.
• Shift of focus: Excessive attention to applying patterns can distract from solving the main business problem.
• Impact on performance: In some cases, abstractions introduced by patterns may slightly affect performance.

It is important to apply patterns consciously and only where they truly improve the quality, flexibility, and maintainability of the code.