The History page provides a partial answer.
There has to be a compelling need to add overloads to the std
namespace. Note, this is a Library Issue. You can search the archives to find if anyone has previously raised a request to add these to the library. If there isn't any you can submit a defect report. The current language does not, in any way, stop you from writing your own wrappers. So, the question boils down to whether a lot of others will also want this as a standard library supported feature or not. But that ain't all. Any extension, even to the library, is not just a technical choice, but is also guided by numerous other geo-political issues. You have to have a certain number of votes to get this in.
Frankly, I'd love to see this get in. However, remember this in no way is a novel/core feature that the library can't do without. So, keep your fingers crossed.