I've been playing since FFXIV originally came out, and I can say that I have never seen anyone vote dismiss in a low level dungeon, or try to kick a sprout for being new. It would would take far more time waiting through the leaver penalty (30 minutes) and then a DPS queue (likely another 15-20 minutes) than it would just running the dungeon with them. It just sounds like the most inane, and backward thinking from a progression, and time-saving perspective.