His mum posted the heartwarming video to Instagram, explaining the moment.
"Jack and I were watching a show on TV. He asked about why the character doesn't live at home with his mummy anymore," she wrote.
"So I tried to explain to him that people usually move out of their mum's house when they get older."
Instagram users loved the video and shared their own experiences with their children.
"My son gets anxiety about this often. He's 4 years old. He also gets anxiety over the fact I will get old. It makes me very sad," one person wrote.
"My 6-year-old still does this when we talk about him moving out one day! He tells me he'll never move out or get married or have kids," another Instagram user said.