Proving Grounds for PvP- gating rndBGs behind them- could be the formula to enable more players an enjoyable PvP experience.
My concept would divide random BGs into 2 brackets. The Kindergarden and Regular. The bracket I called the Kindergarden is the Proving Grounds portion. Once reached lvl110, players queuing for BGs will be sorted into the Kindergarden bracket (the name needs some work, I know).
Upon entering a BG for the first time, they will be given a brief explanation of it's objectives. That's something that should've been offered to beginners long ago already and thus not really part of the Proving Grounds thing but it'd help nevertheless.
Next "kindergardeners" would be given quests to fulfill on the Battlegrounds. Capture a base/escort or capture a flag/defend a base/plant a bomb/mount a vehicle and damage a gate. Those quest could be started automatically once you join a BG or they could be offered by NPCs in a designated location, like the Temple of the White Tiger for traditional Proving Grounds.
The quests themselves would require multiples. E.g. capture or escort 15 flags, the equivalent of roughly 10 BGs(?).
Once all quests are completed, the player has proven that he/she understands the objectives and is capable of pursuing them. He/she HAS OFFICIALLY GRADUATED KINDERGARDEN! WOOHOO!!! ... And is now ready to join the regular bracket.
This is merely a rough draft, made to be molded by new ideas and discussion. For example, quest objectives could be refined and better tailored to the individual BGs, there could be more ranks (as in bronze, silver& gold), an incentive to even get to the regular BGs (more PvP xp maybe, for the new PvP reward tracks?) and so on...
I'm just a guy frustrated by the amount of players disregarding any objectives. This game surely would be more pleasant if those amongst them that are simply unknowing would be tought the basics (and then there are bots but that's another story).