> I would liken it to learning programming languages. Learning new languages isn't considered "locking you into a language". It's even widely considered benefic

> I would liken it to learning programming languages. Learning new languages isn't considered "locking you into a language". It's even widely considered beneficial because it makes learning more languages even easier and brings new perspectives to the table. Partly true, if you don't plan on using the language. But this seems only true, because the majority of programming languages today are open source and portable across different platforms. On the other hand, some time ago C# implied .Net Framework and that would lock you into the Microsoft+Windows ecosystem. In the same way, using SQL that's understood only by PostgreSQL isn't going to be as much painful as using something specific to Oracle databases when the company behind it goes haywire as Oracle did with Java (if not for OpenJDK).