I have enough music coming out of my kids’ bedrooms when I’m at home.

Stewart’s line plays on the expectation that a famous musician would constantly listen to music offstage. Instead, he frames home as already saturated with sound—his children practicing, playing recordings, or generally filling the house with their own musical noise. The remark suggests a boundary between public artistry and private life: after performing and working in music professionally, he doesn’t seek additional, self-selected listening at home. It also conveys a lightly humorous, affectionate portrait of family life, where the next generation’s tastes and volume dominate the domestic soundscape.