It's a preference that seems to be shared by a lot of people which is one (of many) aspects that's made it the best selling TTRPG ever. I just don't see a need for it, if people do there's likely 3PP out there.
Who knows what difference it would make if other aspects of the game had rules added but I remember what it was like in 4E to have a "system" to handle out of combat. Occasionally the idea sort of worked, I use a version of it now and then with modifications. But when 4E first came out and we were using it for everything? It sucked the soul out of the game.
Not saying it can't be done, but I don't need it or want it.