Played a game with a Sivir who fed our lane. His excuse was that he hasn't played League in 2 years and just started back up yesterday. "I don't know what Pyke does." Obviously he never figured it out from our explanation or learning from several deaths.
Feels natural that if you've never played a game for, say, a certain number of months like 6 months, or certain number of patches, you should be required to play some Normals before jumping into Ranked. That won't solve everything, but maybe 15 Normal matches or something would help get acquainted with the current champions and meta.