PSA: Normal games are NOT there for you to play a champ for the very first time
With the inclusion of a practice tool and the already existing bot games, people have more than enough oppertunities to test their champ and at least learn the very basics / abilities before jumping into a normal game, feeding, losing the game for the rest of the team because unlike in the earlier seasons, the newer ones do not allow a single lane to be fed, without having it hypercarry the entire rest of the game because of the well known League of Damage meta that is going on.
Even worse is when people play a champ for the very first time and then proceed to continue to be aggressive instead of playing safe. That should not be an excuse to ruin the entire game.