Here are a few reasons why you should care about data segregation:

1. Data Protection and Security: Segregating data allows you to apply appropriate security measures based on the sensitivity of the information. By separating sensitive data from less critical data, you can implement stricter access controls, encryption, monitoring, and other security measures to protect sensitive information from unauthorized access, breaches, or misuse.
2. Compliance with Regulations: Many industries and regions have specific regulations regarding data protection and privacy, such as the General Data Protection Regulation (GDPR) in the European Union or the Health Insurance Portability and Accountability Act (HIPAA) in the United States. Data segregation helps you comply with these regulations by ensuring that personal, sensitive, or regulated data is handled according to the required standards.
3. Risk Mitigation: By segregating data, you can mitigate the potential impact of security incidents or data breaches. If an unauthorized user gains access to one category of data, segregating it from other types of data can help contain the breach and minimize the exposure of sensitive information.
4. Data Management and Efficiency: Organizing data into separate categories or segments can improve data management and efficiency. It allows for easier identification, retrieval, and analysis of specific data sets, enabling better decision-making, reporting, and data governance.
5. Business Continuity: Data segregation can support business continuity efforts. By categorizing data based on criticality or importance, you can prioritize backup, disaster recovery, and continuity plans accordingly. In the event of a system failure or data loss, you can focus resources on restoring and recovering the most vital data first.