User blog comment:Sargenttacos115/Natsu and Gajeel age Theory/@comment-24.146.144.105-20131227082845/@comment-67.186.75.81-20140727113147

If we're looking at the age of their respective magic isn't all magic older than 80 so Erza, and happy shouldn't have been able to pass the barrier. Second why is wendy the only one whose age doesn't match up with her Edolas version? It's confusing because her Edolas version age wise lines up with with Natsu and Gajeel. Maybe sky dragon slaying magic causes her body to age and develop slower.