While youth vaping among middle and high school students has fallen dramatically from its 2019 peak of 20% to 5.9% in the most recent government survey data, vaping rates among young adults aged 19 to 30 are moving in the opposite direction — reaching a record 19% last year, according to a University of Michigan national survey. This creates a complex policy picture: youth vaping is down, but young adult uptake is rising, and the re-introduction of fruit flavors could accelerate that trend.