During an Australian radio show interview on Monday, Musk's father said he wasn't proud of his son because his family has done a lot of things.
Errol Musk talked about his brother, Kimbal, and the rest of the Musk family in a 20-minute interview.
The 76-year-old was asked if he was proud of the man. We have been doing a lot of things for many years. We didn't start doing anything suddenly.
Since they were little, Musk's children have traveled around the world with him, visiting places such as China and the Amazon rainforest.
He stated on the show that they have done a lot of things together. "Elan has actually surpassed the mark."
Musk senior said the CEO of both companies was not as happy as he would like to be because he felt like he was behind the times.
Errol Musk said that he would have liked to have been there five years ago.
In an interview, Musk said that he wanted to launch the huge spaceship from Space Exploration Technologies.
He is not happy with the progress.
Musk said that Kimbal was his pride and joy.
According to the billionaire index, Kimbal is not as rich as Musk, who is worth $260 billion.
Forbes puts Kimbal Musk's net worth at around $700 million, but it's not clear if he is a billionaire.
Errol Musk said that Kimbal was lucky in his marriage because he spent a lot of time with his wife.
He is worried that he won't be able to find a partner who will give up their career for him.
Musk said that finding a woman to give up what she's doing is difficult.
In addition to his first wife, Justine Wilson, Musk has also been married to two other people. He has been romantically involved with a number of people.
He denied allegations that he had an affair with the wife of Sergey Brin.