Adding New Options To The Game - Ranked Mode

So I've only decided to bring this up based on recent events and is a suggestion to think about. I personally would like the idea up giving players the choice of choosing whether or not they are put in a game with duo's or not. It seems that duo's tend to cause a lot of problems such as if one partner gets upset, the other will follow, leaving a problem of losing TWO teammates rather than the one in a game full of solo-ques. That is just one example of what happens with duo's that create a bad atmosphere in ranked games, so my suggestion would be to allow players to join a ranked game knowing either everyone is solo-queue or be placed in a game where there duo-queues are present. This way players can take the chance, or if they don't mind, to play in a game that will involve dealing or having duo players in their team. An idea of having 2 buttons for ranked, one as the ranked button now (anything goes) and the other for everyone to be a solo queue.

The worst is when a duo is playing, they both go bot lane (taking support and adc role), then one trolls by afk or leaving, the other follows and now you have an entire important lane lost, which is hard for the 3 left to fix especially given their roles. Any how I'd like to hear everyone's thoughts and experiences, preferably informative.