Why Did Goku Leave with Shenron?? (Ending of Dragonball Series)

hmmm, Yeh its very a confusing ending of the Dragon Ball series. The Ending features goku leaving with shenron in the Dragon Ball GT last episode (UNTIL WE MEET AGAIN)
well here are some answers i found in the internet that might help you out
You have to watch either the frenh,spanish or japanese version to understand all about Goku. Funimation changed almost every single line and that makes dbz confusing. when goku was a baby goku he was evil, he got hit in the head real hard and that made his personality change dramatically. He was an accident of nature, thats why he left with shenrong. He was the cause of all the evil beings appearing in the universe, threatening the universe. Its all about a asian proveb called ying-yang(good-evil), or the law of physics, for every action there is a reaction. In the cell saga, Goku told his friends that he didnt want to be rezzed cuz bulma suggested him that it was because of him that all enemies came to earth. In the bu saga, he coulve killed fat buu. When Piccoro asked him why not kill Majin-boo as SSJ3. He said he wanted to let humans do this, if he does another enemy will appear and he also said : "its not fair because im dead". Right after he killed buu, he sat on a rock and was thinking about it and he decided to stay in earth. He thought that no more enemies will appear, because all the enemies the universe and him know have died(frieza,buu,cell,etc). But in GT he realized that no matter of he destroys em all, more will come and will at some point leave unreparable dmg. Now u might think that there is still good people on earth like Gohan, but he is not like goku, gohan has a litle evil (he wanted make Cell to suffer). Goku always shows mercy, hes been critizied for it, even when Frieza killed Krillin. He apologized to buu for killing him. He is too powerfull and extremely good to exist. Btw, he is not highly gifted, hes just a low class saiyan with the will of getting stronger. The message of Akira Toriyama was that it was all about personality. Anyone can surpass a highly gifted if one really wants it. Goku said that like 3 times, idk about funimation. Goku translated to english means "empty".