I've said it before, but it is dumb to try and hold a fictional character to the same standards as real people when their characterization will change at the drop of a hat whenever writers or editorial think they have just the right idea to increase sales. Furthermore, the red bat
is Jason's brand now sot will always be present in some shape or form now, so I'd rather avoid wasting precious time on something like this and focus on the story at hand.
Anyway, Bleeding Cool claims to have
gotten hold of the scrapped master timeline put together by Didio back in 2019 and if this thing would've become canon, it means that Jason would've been 13 years old when he met Bruce, be Robin for 2 years, and dying at 15 years old. Then 8 years would pass until he returned as Red Hood at 23 years old and be 33 by the time Death Metal happened. Is a bit strange to think of a 33-year-old Jason running around fighting bad guys.