Making the game easier for beginners/newcomers and old players (who haven't played for a while)

So I watched this video about League of legends. It was said that it's hard for new members to learn the game if they have no help. There was something mentioned about a buddy, which made me think that it would be perfect if league of legends had a buddy system. Here is my comment (that I wrote under the youtube video):

_Maybe make a buddy system for new beginners and reward the buddy for helping the new players. I mean even players who have played for some time have always something new to learn (even bc of the new patches all the time/or welcome old players back)_

One of the replies to my comment:

i would absolutely love this. As someone who has been playing for years i find it would feel rewarding passing on some of my knowledge to someone new to the game. Might even make some new friends out of it :D. This is something that needs to be done lol.

So what do you all think about this?

Not sure what the reward could be but I thought that maybe skins, wards etc would be good .