Can we be allowed one leave in champ select while in Promos?

So I'm a spaz and this might be due to the salt at how stupid I am for making this mistake, but I just got into promos and was first pick. For some idiotic reason on my part, I accidentally messed up and locked in the wrong champion. Due to me not wanting to screw things up for everyone else, I left even though I knew it would incur a loss on the promos. However, this got me thinking. What if you honestly just don't think the team you get will work together that well. We've all had games where one person says something and then another will start trolling or the like. So why not allow something like a first leave of the day thing in champ select, where you are allowed to leave but only once per day. This leave will mean no loss in LP or even a queue dodge timer. It's simply meant to be a sort of re-roll. After this, the normal punishments of leaving will apply.