Something to remember is that, especially during calibration, you can't always rely on your team to play support.
If the other 4 are not the support, you are the support. You might be good enough to play without wards, but the other 4 probably aren't
Sometimes you're going to be support broodmother.
Sometimes you're going to be support weaver.
Don't be the guy to dickwave a game into a loss because you don't want to support.