Now, a lot of people in here are against Robin for various reasons which i will try to adress. Keep in mind that i am defending Robin in general and not just for the Nolanverse. For all we know, the post-Nolan Batman films might be closer to canon.
1) He is a kid sidekick fighting crime.
Well we are talking about a guy who dresses up like a bat and drives a flying car in a fictional gothic city. He lives in a world where 1/3 of the population consists of costumed heroes, the other 1/3 of supervillains and the last 1/3 of their victims. Having a kid sidekick is no less unrealistic than an alien that looks exactly like a human, besides the fact that solar radiation gives him superpowers. In fact, Batman often teams up with that alien. Its fiction, deal with it.
2) Robin is cheesy. Batman should be alone, on a gargoyle, in the rain.
Robin's costume is admittedly too flashy for him to be Batman's sidekick. But other than that, Robin's story is just as tragic as Batman's so he is a pretty serious character. Besides, just because Bruce adopted Dick, it doesnt mean that he is in every comic from then on and the same could be for the movies. If a movie doesnt have any use for him, he could just have a cameo (exams at school keeping him busy or whatever).
3) Robin lightens things up.
Dick lightened things up a bit. Jason and Tim were pretty serious. But Dick is the first Robin (and the one that we'll see in the movies if Robin is ever used) so lets talk about him. Dick is an amazing character, loved by fans just as much as Bruce or Clark. His lightness is very important because (a) it lightened bruce up when he was about to lose himself in Batman, (b) it shows that even though he witnessed his parents' murder and is raised in a cave, he hasnt lost his spirit and he can still enjoy life, (c) another grimdark character would sink the ship thats already heavy on it.
4) Robin offers nothing.
O'RLY? Let's see:
a) He pulled bruce out of the darkness he was sinking in. But he also balances the story by balancing the level of grimdark.
b) He is Bruce's son, heir and sidekick. Adopting Dick and then losing him when he left to be his own man are two major points in Bruce's life. And that's just Dick.
c) Provides exposition other than Alfred's. Face it, the Batman most of you know is the one from the movies. Batman has a huge network of allies and sidekicks. Its like House. Its always about him but you need a team of doctors, Cuddy, Wilson and the patients to give you the various situations and discussions for character development.
We re just getting started on the rogues gallery, but how many times can Batman catch the same dudes before it gets stale? That's why they keep giving him new sidekicks throughout the years.
d) Because it places Bruce in a different situation where we get to see him act as a mentor and a father. Its something other than: "OMG, where are these clues leading me?", or "goddamnit Catwoman i love you but i have to lock you up. Why did i fall in love with a thief?", or "ESCALAZIONZ".
Robin plays a huge part in the Batman mythos. You have every right to hate him, but at least give him a chance before you judge him. I am willing to bet that most of you have only seen him in the movies or in an issue or two that you happened to read. You're interested in Batman, right? So why dont you guys pick up the comics and start following the canon story there? You'll inevitably be exposed to Robin and sooner or later you'll come to love him and appreciate him. If not Dick or Tim, then certainly Damian.