Passive income: NO

It is unlikely that someone could earn passive income directly from being a swim instructor without branching into other income streams. Most swim instruction requires active participation and direct interaction with students. To make it passive, one would need to set up systems like hiring and managing other instructors, creating a swim school, or developing an online course. However, these require significant effort and management, and only a few outliers achieve true passivity. Most people do not reach this level, and many fall for the myth that teaching can become passive without substantial upfront work and ongoing management.