Yeah, I'd definitely consider it, especially if there's a good chance the room will get redesigned again in a couple of years. I like the fact that you're not committing to a permanent look when their interests change. I was browsing cute wallpapers for teens and noticed there are plenty of designs that could work as a feature wall without requiring a complete room makeover. The easier installation is another plus because you can update one wall instead of turning the whole bedroom into a renovation project.