Under the Consumer Protection Act 2019, the primary focus is to safeguard the interests of consumers who engage in transactions for personal use or consumption. Here is the reasoning behind the exclusion of individuals who purchased goods for commercial purposes from the scope of the Act:

1. Intent of the Act: The Consumer Protection Act is primarily designed to protect individuals from unfair trade practices and ensure the rights of consumers who purchase goods or services for their personal use.
2. Commercial Transactions: Transactions conducted for commercial purposes are generally governed by different legal frameworks that are specific to business-to-business (B2B) interactions.

Hence, the exclusion of individuals who purchased goods for commercial purposes from the Consumer Protection Act 2019 is to maintain the focus of the act on protecting the rights and interests of consumers in non-commercial transactions.