Why did he come home ?? He's still a weakling! He has not learned the art of qi!
He has not perfected his martial arts! Batman at his age had already studied more than 90 types of martial arts, became a master of weapons, ninjutsu, stealth, many types of meditation, became a master of yoga, acrobatics, gymnastics, acting, learned tricks from Giovanni Zatara, became a professor in many scientific disciplines, dance, tempered the body, soul, mind and heart, to fight his own fears, the moments when Batman was in a state of shock can be counted on one hand, he reached the body of the Olympic level! He's a Sherlock-level detective, he's traveled half the world !! He calculated his travel plan in just a few minutes! He adopted the experience of many people in different fields of study around the world! Translated by Google translate !!