It's hard to point to any one thing that caused Sterling Knight's career to stall, and, as of this writing, he hasn't publicly commented on the lack of roles, which makes sense. As an actor who's still working occasionally and continuously looking for work, Knight recognizing his difficulty landing gigs doesn't exactly paint a picture of an in-demand actor. What we can extrapolate, however, is that Knight fell victim to the same phenomenon that affects many child stars. Very few child actors successfully make the leap into adult roles and projects, and for every Selena Gomez, there's a Kyle Massey, a Miranda Cosgrove, a Sterling Knight. 

The fact that Knight is still getting sporadic work points to the fact that he didn't choose to step out of the spotlight, but is simply less in demand than he once was. Knight is not counting himself out yet, though. In an interview with the University of Texas at Austin's Sneak Peak in 2019, Knight, who has appeared in shows like Melissa & Joey since his Disney Channel days, shared some of the goals he still has. "I'd love to be a superhero," he said. "I don't have the build for it yet, but I'm trying." Knight's longtime fans surely have their fingers crossed for the former Disney star.