Phone -> USB Cable -> Computer. Transfer images via said cable. Select images, put in email and send to mum. Having said that - all his points are valid, though I'm not sure I'd bother to get that angry at stuff that is out of my contorl.
On my Moto G, this is more like: connect USB cable, wait 2 minutes while the computer is mounting the MTP. See it fail. Unconnect cable, reconnect. Forgot to unlock screen on the phone. Unconnect cable, reconnect. Wait another 2 minutes. The drive mounts now. Select photos. Copy. Paste to hard drive. Wait 10 minutes while the computer is copying the files. See it fail with a cryptic error.
Utterly useless. From what I hear, this is a normal experience since Android switched from using USB mass storage to MTP.