Level and Age has nothing to do with each other. You are not older because you are level 2 and someone else is level 1.

Right, in that case you're just interpreting it wrong. Level is not analogous to age in WoW, although it is to experience. On an RP server, you don't suddenly find out that Outland exists at level 58 when you're 58 years old. Your character will find out it exists by being told by someone or reading a paper or having a friend who went there, much earlier than that. But you're not experienced enough in whatever your job is (blacksmithing, being a paladin, whatever) to be of any use in the campaign there until, game mechanics-wise, you've reached level 58. Compare it to real life - you know you can go to university when you're 18, you find that out at 12 or 13, but you aren't experienced enough to go until you're 18.

lemme clarify it a little in order to enter outlands in the game thru the game mecanics outside of somone teleporting u to shat or something and to even do any quests u need to be 58, now theirs a few years that pass in wow from vanilla to bc and a year from bc to wrath so that implies that time is passing so when u get to 78/80 one year has passed from 58/60 thats all im saying. im taking two things that are implied in wow time and the level requirement and just interpreting them as u aged that much.