Yeah, an usb phone connection is already quite outdated anyway.

With the recent steps to implement wireless charging, the connector will be removed along with SIM and SD card slots, which provides the feature of making the devices water proof.

I am personally just using ipads since 2010 and it is just way easier to transfer data and photos using a wifi connection and a local samba or ftp share. Beside the required activation of the first ipad, I never connected any apple device via USB for other reasons than charging.

The "Documents" app is your friend here.

Investing time to create some fancy protocol that works for some phones, while other break the rules and need extra coding is not worth it, anymore.