Just looked at CDC website it says fewer than 20%.
Suburbs have been the only place where I’ve seen lots of yellow busses because everything is so spread out. Idk where that dude got his numbers, go to any city in the USA and you'll see kids taking public transit to school aka walking.
Not every school system provides transportation, and when they do, some states (maybe all?) require that transportation be provided by a yellow school bus and not a city bus. (My father ran into this in Indiana).
I'm gonna guess that in at least some of these areas, they walk/take busses because the school system doesn't provide transportation.
From a 2014 study in Norfolk, UK[0] (note: UK should have relatively similar child obesity rates as the US at this time, given they only surpassed the US in 2018[1]):
> This study shows that young people living closer to school are more likely to walk to school than those living further away (Panter et al., 2008, Pont et al., 2009). The novel contribution of this work is the identification of the threshold distances that children walk to school, and that this increases as young people age; the criterion distances were 1421 m (0.8 miles) at 10 years, 1627 m (~1 mile) at 11 years and 3046 m (~1.9 miles) at 14 years.
However, note that US suburbs are often vastly more spread out while servicing the same size population: for example, Worcester, England at 100k population is only 12 square miles[2] and Chico California with 100k population is 34 square miles[3].
Suburbs have been the only place where I’ve seen lots of yellow busses because everything is so spread out. Idk where that dude got his numbers, go to any city in the USA and you'll see kids taking public transit to school aka walking.
https://www.cdc.gov/pcd/issues/2016/15_0573.htm#:~:text=Esti....