FAQ schema is crucial for AI search optimization because: 1) It enhances content discoverability in search results. 2) The question-answer format aligns perfectly with how AI systems process and retrieve information. 3) It optimizes content for voice search queries. 4) FAQ content has a higher chance of being featured in 'People Also Ask' sections and featured snippets. 5) It provides a structured way for AI systems to understand and utilize your content.