The couple welcomed their son in May this year, raising a few eyebrows with their chosen name X AE A-Xii or X for short.
Speaking to The New York Times, the Tesla CEO and SpaceX co-founder said that babies "are just eating and pooping machines" and that Grimes has a lot more responsibility while he's younger.
"Grimes has a much bigger role than me right now," he admitted. "When the kid gets older, there will be more of a role for me."
Musk has five children whom he shares with his first wife, Justine Wilson, and is basing his parenting philosophy off how he raised his other kids.
"If I have a trip for Tesla to China, for example, I'll bring the kids with me and we'll go see the Great Wall, or we took the bullet train from Beijing to Xian and saw the Terracotta Warriors," he explained.
And it's not just on work trips the 49-year-old billionaire is hands-on. He revealed he created an online school for his older kids to learn during quarantine, which he says has "actually worked out pretty well."
While six kids may seem like a lot for some, Musk thinks more people should to follow his lead.
"Really people need to have more babies because, it sounds obvious, but if people don't have enough babies, humanity will disappear," he said.