Everyone should play support a few games it will help you improve a lot more than you think.

Real support not the champ but the mentality to support your team. One of the more fundamental things about playing support is analyzing both teams and see what your team is missing and what their team is bringing and how can you both reduce their treat and increase your teams treat. While some may think "oh but you should be doing that regardless of your role" there's a specific thing that the support role has that other roles don't. The capability to do everything. They can tank, damage, CC, peel, gank, cover, bait, give vision, ultimately carry and you carry on that advantage when you pick support, all you have to do is analyze the situation and see how you can take advantage of it. I mostly play support, it's my go to role when wanting to win but when i do play other roles i find myself concentrating on warding, vision and taking care of any iffy thing the team is missing out. Now i think if everyone would get used to helping out in every game would go a lot smoother and eventually more good games would happen. Not just steam rolls from either side which makes the game boring.