[quote=DeathstrokeSW]
As a Kaleesh, his view of war is that it is a necessary part of life. He has not heard of Revan or the Revanchists cause, rather he most likely signed up for defense against the atrocities the Mandalorians committed. The Council KNEW what happened on Cathar, and still did not lend full support. With word going around of what the Mandalorians did on Cathar, it was probably his code of honor that drove him to IRSOG. That said, do you know of any Jedi training facilities near Kalee, given that it's in Wild Space?
[/quote]

There are various Praexums that are ship-based, so that's entirely doable as well.

As a Padawan, he still ran away, so what really got him in IRSOG was that Republic military command hands off padawans to the first jedi they can find. And the Jedi authorities in charge of the mercy corps, ie. Revan, are assigning padawans to those jedi out of convenience.