So you think Batman isn't a solitary and tragic figure? And how's that? Sincerely I don't know what to answer, it's like if someone says sky isn't blue or cakes aren't sweet...
Jim Gordon's debut- Detective Comics #27, mere pages after Batman.
Dick Grayson's debut- Detective Comics #38, less than a year after Batman.
Alfred Pennyworth's debut- Batman 16, 4 years after Batman.
I could go on.
Here's the issue: Robin CAN'T be as dark as Batman, because his nature isn't dark.
That's just not true. For the past 5 years Robin has been a murderous genetically engineered Al Ghul spawn. Let's also not forget the original dark Robin, Jason Todd who was a homeless child, thief, drug user etc and doled out severe injuries, used guns and may too have murdered someone.
The Silver Age ended almost 30 years ago. Characters can be different in and out of costume.
Batman is a traumatized man whose parents were killed in front of him when he was 8 years old, and who uses all his fortune to take revenge against the criminals.
Dick Grayson/Jason Todd/Tim Drake is a traumatised young man whose parents were murdered in front of him when he was [varied] years old, and he uses all his resources to take revenge against the criminals.
He's an exaggerated character, a pulp one, but his concept is, I wouldn't say dark, but adult, a caricature of the feelings of anger and impotence we all experiment when we face irrational, random violence.
Thank Zod neither Richard, Jason or Tim are exaggerated, or suffered anger, impotence, or do something ridiculous like try to fight crime.
Wait...
Robin is a boy whose parents are killed in front of him, and who is adopted by a viglante millionaire and trained to be his... sidekick? Trainee? Heir? There's nothing adult (dark, if you prefer) in his concept, because he was conceived to attract the kids, to make they think they could battle evil beside Batman.
You keep going back to his creation, as if all comic book characters aren't children's characters.
They're all children's characters. Oh, what's that Timmy? Someone bullied you at school? Gave you a severe beating? Well that's alright! Wanna know why? I know you're strong! Just like [Batman/Superman/Captain Marvel]. But you just keep it hidden, like [Bruce Wayne/Clark Kent/Billy Batson].
Also, I don't think Richard, Jason or Tim were adopted anymore. They were moved to one of the Wayne orphanage things.
You can make realistic, adult, versions of Batman, Joker, Two-Face, Penguin, etc, because ther are based in adult concepts, but it's impossible to make a dark version of Robin, because he isn't dark. It's like make a dark-adult version of Barney the dinosaur, you can try but the result will be ridiculous.
All superheroes are inherently ridiculous and immature, deluding yourself into believing differently is just as immature. Batman is not a "dark" character, he's the childish wish you wanted as a child, and as such is ridiculous as Peter Pan, you can slap him in armour and have him fight terrorists but it's still a child's drawing, only in a metafictional sense is he dark in that he is forever doomed to see his parents die and spend eternity battling criminals.
Of course, I'm always talking of Robin as the figure who actively helps Batman in his crusade, not a kind of young Alfred. If you are imagining Robin in action for me is the same that the original Robin, even if he's wearing a darker costume.
Batman '66 fought Joker, The Dark Knight fought Joker.
Same film really, I agree.
For me, and this is personal opinion, the one really interesting is Jason Todd, because he's the one who really is more mature than Bruce and shows him his own madness and the futility of his actions. As far as I know, the others sidekicks just serve to reaffirm the Batman role, and that's not interesting for me.
They're all more mature than Bruce. After 22 years he's still obsessed with the murder of his parents, his psychological outlet and can't hold a stable relationship, he's emotionally ******ed, stuck in the same childish mindset he's had since he was eight, his only real relationship outside of the Robins is with Alfred, who primarily stayed with Bruce out of debt to the Wayne's.
Dick moved on from his parents death, he's sad, but he accepted it. He had the most friendships of anyone in the DCU, considered Superman's equal, ahead of Batman and has had several lasting relationships and reformed a brainwashed murderer, who just so happened to be Bruce's son, who Bruce himself couldn't reach.
Jason returned from the grave having grown marginally. He saw Batman as ineffective. He moved on from Bruce not saving him, for replacing him, for saving Joker. He had a nervous breakdown when Bruce died however, but afterward he grew even further, made amends with Bruce, adopted Bruce's code, has a group of close friends and girlfriend.
Tim was created to be well adjusted initially, further proof to Bruce he needn't be so obsessed, that there is a Bruce Wayne and maybe he should grow up. But Tim sees his parents die, for no reason, his best friends die, his adoptive father die. But he pretty much held it together, an was rewarded for doing so, he's had several relationships and several close friends.