Riot you have a huge problem
Honestly you need to fix your tutorial and stress the importance of vision. This is like the 3rd game I've had in a row where my teammates are doing bad in lane due to ganks and they refuse to ward because they're "on tilt". Now I don't know whether it's due to lcs that they think that playing these "op" champions can carry them or what but apparently when you go on tilt due to being ganked buying wards is somehow going to set you back instead of solving the problem that is keeping you from doing well in lane. Vision opens up so many opportunities for plays and kills that LCS wannabes want to pull off but that starts at the beginning. I'm at the point where I think it's too late for the current people that have the "I don't need to ward whatsoever to do well" so please to stop this in the future start now so that eventually the new players that will become vets don't have this mindset. I am begging you this small change will be a big QOL to the game overall.