Because you are working for a company that like 99% of companies have less than a million users? You want data analytics, financial reports, the ability to que

Because you are working for a company that like 99% of companies have less than a million users? You want data analytics, financial reports, the ability to query your data in new ways you didn't think of when you first built the product? NoSQL comes at a great cost. When you hit a million users, the entirely of your codebase will be on-fire with scalability issues anyway so it won't make any difference?