Telemachus is not a hero. Throughout his quest he never has to over come any challenges without his father.
The boy is supplied a ship frrom the suitors with a full crew. This shows that he never had to struggle to find a crew or buy a ship. That is why tellamachus is not a hero.
Odysseus is a hero. He encounters challenges that he must over come even without a hero partner. Poiseiden threatens to kill odysseues by cursing the sea. Odysseus fights for his life and uses the magic scarf to live through. That is why oddyseuss is a hero.
