You don’t get any of that for free. You get it at the cost of working with the abstractions, which can be very high. Your RDBMS is not an OOP/multi-paradigm system like Python is (or whatever other language). Its objects interact differently, and it has different access patterns. Any system you use to try and ignore these differences is just going to create a host of other problems for you, especially this idea that it will allow you to simply ignore database administration.