Let's talk about a thing here. Ok support might be a role for some players who doesn't want to play, but i've seen a lot of people who asks if they can play another lane because they got selected as support, but if i say no to people who refuses, they'll troll. Well for me i'll just say ok i go support because i enjoy playing every role and i don't ask for lane switches. If i play bad during the game, they'll just flame me for it.
Here's another thing: **You can't always get what you want.**