I think aging isnt something that DC should be scared of and something that they should embrace. When you halt a character from really aging for 20 years it stunts the story potential. How long does Beast Boy/Raven have to go through teen issues?

If DC did a simple "2 years in the real world = 1 year in comics/24 issues" that gives them 20 years to tell 10 years in the comics. Seeing Bruce age and how he has to adapt to that would be great, he goes from wearing spandex everyday to creating a more super powered Bat suit that makes up for his age.

And of course DC loves a good reboot so once your characters get to old you do a reboot and start from scratch again. Comics are like soap operas where they arent as big as they used to be and they need to be changed up.