I really loathe how they are aged Jason up. He was 12-13 when Dick left to become Nightwing, and Dick was in college at the time. Then Jason died after being Robin for barely a year, and 6 months later Tim became Robin.

I understand that, with the current timeline, there is no way Jason could be 6 years younger than Dick. But still, Jason should be a fair bit younger than Dick and around Tim's age. Instead writers and artists insist on making him a fair bit older than Tim and around Dick's age.

It really annoys me because I much prefer to think of Jason as Dick's little brother, and if they are around the same age it just doesn't feel the same.