"Yes, we are allowing you, today on your 15th birthday, to join the social media universe," Matthew said in a birthday tribute to Levi on July 7, to which Camila added, "Yes, all his friends have had it for long time. We've been holding out."
Despite Camila admitting that she's a "little nervous" about Levi getting on the 'gram, Matthew noted that they both have full confidence that he "can handle it."
"He knows who he is and he knows where he's going at that," said Matthew, who also shares 13-year-old daughter Vida and 10-year-old son Livingston with Camila. "He's got a great story to tell and share."
As for what fans can expect from Levi's future social media presence? The Oscar winner said followers will get "a very cool and respectful young man in Levi McConaughey coming at you, and I hope y'all can best treat him in the same way."
Matthew ended the joint video with a message for Levi, telling him "enjoy the adventure."
"Enjoy sharing your story, expressing yourself, and what you put out there and the exchange you get with the people out there," he said. "We love you, happy birthday."
And Levi has already taken the milestone in stride, commenting underneath his parent's video, "Mamma and Papai thank you!!"
The teen uploaded his first post the same day, sharing a video montage of himself surfing and traveling around the world.
"happy to be here," Levi captioned the clips, which had Matthew chiming in the comments, "levi is l i v i n #happybirthday."