
"6 steps a day" is just calling people lazy with extra steps. Laziness isn't what drives obesity. Hadza hunter-gatherers walk miles a day yet burn about the same daily calories as sedentary Westerners, adjusted for body size. Weight is driven far more by diet, and the cheapest food in the US is ultra-processed. Twin studies also put BMI heritability at 40-70%. Walkable cities are great, but this isn't a willpower problem.
Walkable isn't about toughness or willpower, it's about distance and safety. If the nearest grocery store is 4 miles down a road with no sidewalk, that's not a wimp problem, that's a design problem. US pedestrian deaths hit about 7,500 in 2022, a 40-year high. And try telling someone working two jobs, a parent with three kids, or a disabled person to just tough out an hour-long walk for groceries.
Diet is absolutely important and studies show it’s more important than exercise. But studies also show that walkable neighborhoods do have a significant correlation with obesity. When the only steps people take every day are too and from their car that’s not good. Very bad actually
Then we agree. If walkable neighborhoods have lower obesity, that's evidence the environment shapes the outcome, not willpower. People in car-dependent suburbs aren't lazier, they live somewhere designed without sidewalks. That's why calling it a personal failing, like the original post did, misses the point.