I agree that that mentality is not necessarily needed but I think it should be portrayed.
You are subject to fault though. As long as you admit that retirement could work I'm fine. I'm not saying people need to love it I'm saying people need to accept that in the schema of Batman as well as this universe it's totally possible and functional.
Throughout all of comics, many characters have some trait that was not they didn't have in the beginning but now have that has become a staple of the character.
By the same token the fact that that trait came to be was the work of a creative entity who took that leap.
Retirement is the same kind of leap, it's doing something with the character that (maybe) has never been done before. You'll never know unless you try.
Wolverine for example, the Weapon X/Department H backstory did not always exist but it was introduced in time and is now a staple of the character; something that can be abandoned. Now yes, Wolverine is an extreme example considering it his origin but its the same principle.
And if someone wrote a new origins for Wolverine that was grand and amazing, I'd be just as happy to accept that. I'm not stuck in what has been done before just because it's universally accepted.
Taking risk is why these characters are so popular to begin with. Now is not the time to insist we stop taking risk with them because the status quo for 40 odd years has been this particular thing. Every so often we need someone to take what we love and turn it on it's head so we can enjoy the character in new facets.
Him retiring is equal to
Batman: Year One in terms of risk. It's taking something we know and doing something new with it. We can't just say "No, it'll suck" because we don't like it and haven't seen it done before.
T
he "will he ever stop or be able to stop" part of the Batman story is as important as him having a cowl. It is a part of the Bruce Wayne story that needs to be touched upon.
The question is important and the question is in these films. The answer is what is being debated here. What if they answer: "Yes, he can stop"
My goodness this would be something new and would show us something great!
If the answer is always: "No, he'll never stop' then why the hell are we seeing these films? We know how it's going to end.
Months ago this debate was Can Batman die and people said no, he can't die and he can't retire.
So what do people want? They want to go into these films knowing exactly what's going to happen? He's going to be successful and live and be batman forever! Well, ok?
In this finite world I'd love if Nolan took the risk and had him die or Retire but if he continues being Batman that's great too. The drive of the film is not knowing which one will happen.