Is DRF really needed, cause i tried it out an i can easily use the json module to get and return jsons. What is the use of DRF then?

Hey guys, I am working in building a webapp with django and react
I am confused if i really need to use django res framework. Is DRF really needed, cause i tried it out an i can easily use the json module to get and return jsons. What is the use of DRF then? Is it important and is it recommended?