Sure, but the real problem is that users of mobile phones as a whole are pushed away from local file transfer by a default UI that disfavors it. There could be a single toggle for this in the top menu alongside wifi, airplane mode and the flashlight, it could even connect the file systems by default like any other USB storage device does, or at least not require taking extra manual action every time beyond plugging the thing in. If someone is wondering how they can transfer their files, this is not likely to be the option they land on, even though on a technical level it is the simplest and most reliable.

Apparently you can enable automatically connecting with “Default USB configuration”, which seems to be the most straightforward solution, but it’s a developer setting so there are extra hoops to go through.