Actually, there are a fair number of resources here for starting trainers; including small arena's to train in...

Not to mention, the city houses a natural population of joltik that wouldn't at all be considered out of your level range for the moment. If anything, it could help to give a bit of a boost before Striaton. Most trainers find themselves underleveled when they get there otherwise.

[it also gives him time to acquire the funds for that caravan.]