Why does Michael Jordan quits playing basketball?

Well, he quit Basketball 2 times, on the first, he retired because his father died and so then Michael Jordan promised that he will play Baseball. After 2 years, he decided to come back and play basketball again. On his game, he was not good at basketball so he decided to train really hard. Then he had another game and he became the strongest ever. Years passed and Michael Jordan became the most oldest player to play in the NBA. I forgot how he quit again but i think it is because of his age.