It sounds like he's the alpha male. All the girls will find him irresistible. Probably farming is easiest, with a little patience, if you are to teach him a trade, assuming you have L2. Drop him on a coconut palm and let him try to climb. Once he starts to climb drag him away and drop him again. He gets credit for a successful attempt immediately he is off the ground. If he refuses or if he stops and is "waiting for someone" pick him up and drop him again. Eventually, despite the attentions of the ladies, he should reach trainee. However, be prepared for his future farming to continue to be interrupted unless and until he ceases to be the alpha male.

By the way, don't think of getting rid of him; the women would only transfer their affections to another poor male.