The support conundrum: being shackled to the adc
Supports have, through their kits and through itemization, an incredible amount of ways to boost their adcs. Which is great I guess, but on the other hand it feels like you are not very efficient as support unless you stick to your adc like glue (regardless of whether adcs are strong or not)
It seems to me that too many abilities and items are specifically tailored towards supporting adcs.
Why not add more items/abilities which shift the balance more towards the other roles? Like item abilities which scale with armor, increase cc duration inflicted by teammates, give melee attacks/abilities extra range, reduce the cd of basic abilities for a teammate for every ap ability that you and that teammate fired and that hit a target,...
These are just examples and are probably unbalanced, but you get my point.
As support I'd like to be able to make meaningful choices of whose job I would like to make easier. Right now it's mainly about keeping the adc alive.
Maybe this is a low elo issue or maybe I'm misinformed, I dunno.
Thoughts?

.
chasing one of your allies nearby.
despite the meta sheep buying it. I also don't share the all too common opinion that 'most supports' can't buy
to help out.
or whoever aren't so bad once you pick up
come to lane and take the first two minions, when both champions are 100 percent health and the income item is viewed as useless from then on out. Don't get me wrong,
and more have the tools to reliably trigger the income item's heal.
, which is an item supports can take to buff mages and assassins, and even tanks.
generally benefits auto-attackers, though. Not just ADCs and Yasuo/Tryndamere.
(partially)
(if it allows him to get another attack during ult especially)
Effect doesn't discriminate. Best on ADC's (as opposed to other squishies) because they have the game's highest damage out-put (more healing for the builder).
Shields everyone equally based on the user's bonus health.
The CC removal benefit everyone equally. Except maybe Olaf.
Doesn't get built.
Heals everyone equally.
Doesn't interact with allies.
"Allied basic attack burns" don't stack; the duration refreshes. So attacking more than once every 2 seconds accomplishes nothing. Meaning that Raw AD is the only important factor on that part; crit and AS don't help (if I interpret it correctly; Riot is a tad ambiguous on this one).
MS bonus doesn't discriminate.
Shield active benefit everyone equally.
Doesn't interact with allies.
(I'm probably missing something.)
(Can even us abilities on the front and back line simultaneously!)
(Q favors ranged champions for ease of application)
Passive favors ranged champions for ease of stacking. But allies don't directly benefit from anything in his kit.
W AS bonus favors ADC's because it benefits their AD and crit. Interestingly, release Lulu also gave out bonus AP. But the AS and AP buffs were lost in the war against top lane Lulu. The AS came back as an effort to incentivize her to go back there.