Suggestion for more fun and balanced games

In my opinion, the games I find most enjoyable are the one's that are balanced. Even games where you feel there is a challange without it being too easy or too hard. For the whole team. Every single player.

Now, I'm more of a casual player, maybe 10-20 games a week (without checking stats). Of these, there are about 1 or 2 that I would say are fun. The rest are at best not boring. Taking into account that a game takes about 30 minutes(?), that means that I each week waste a number of hours in games that I really don't enjoy, getting frustrated and bored. That is why I pose the following suggestion;

I would like there to be a mmr min-max setting in the create game-meny. Something that gives you control of how hard or easy opponents you are willing to take on. On the minimum side, there should be a cap at around your own mmr -10%, on the max there should be no cap.

This will, in theory, not get rid of the games where a bronze player faces a Diamond in toplane if he so choses, but it gives me as a player some control and let's me decide if I want to be a part of these games or not. For those who like a challange, they can set the caps high, and for those who just want's to play against ppl of their own skill, that should also be possible. I am of course aware that this doesn't weed out the problem with high mmr players having multiple accounts, but with a functioning mmr-system (which we all hope will one day be the case) these accounts wouldn't be able to play too many times before slipping up in mmr.

Anyway, that's my 2 cents. Plz leave a comment below.