Your dismissal of both the DRF tutorial example and generics as a whole is entirely unconvincing. For a very simple example such as the one provided the suggest

Your dismissal of both the DRF tutorial example and generics as a whole is entirely unconvincing. For a very simple example such as the one provided the suggestion to not use them appears reasonable, only because the accompanying serializers which answer your questions in an even more clear and declarative manner are not included. For more complicated endpoints your suggestion becomes an absolute nightmare.