At first glance, the numbers look contradictory. SFIA reports that a record 250 million Americans participated in at least one sport, fitness, or outdoor activity in 2025, and total inactivity fell below 20% for the first time. Yet one group moved in the opposite direction: among teens aged 13–17, inactivity rose 4.4% year over year, making adolescents the only age bracket to get less active. (sfia.org)

Part of the explanation is that “participation” and “enough movement” are not the same thing. Organized sport may be booming while everyday physical activity quietly erodes. The NFHS says high school sports participation reached a record 8,266,244 in the 2024–25 school year. But CDC data paint a harsher picture of daily life: in 2023, only 25% of U.S. high school students were physically active for at least 60 minutes every day, which is the federal guideline for youth, even though 52% had played on a sports team during the previous 12 months. In short, many teenagers still touch sport, but far fewer live in bodies that move every day. (nfhs.org)

Why is that happening? The evidence suggests three converging pressures. First, ordinary movement has become structurally scarce. CDC materials note that less than 4% of schools require daily physical education, only 55% offer physical activity clubs or intramurals, and in over half of schools, 10% or fewer students walk or bike to school. Second, screens are devouring discretionary time: national health interview data show that 12- to 17-year-olds with two hours or less of weekday screen time were much more likely to be active most days than those with four or more hours of screen time, 70.4% versus 54.4%. Third, access increasingly depends on money. Project Play reports that in 2022 the average parent spent $883 per season on a child’s primary sport, with soccer and basketball topping $1,000 on average. (cdc.gov)

So the paradox is only apparent. America is generating more activity overall, but for teenagers, movement is being pushed into narrow channels: formal, expensive, scheduled, and competitive. When casual play, daily PE, and active transport recede, the teens who are not elite athletes do not merely exercise less; they begin to disappear from the nation’s movement culture altogether. (sfia.org)