Definitely agree it comes down to design, this video is really just about one type of suburbia, the type without any shops or recreational facilities of any kind or even footpaths to get around.

The suburbs I grew up in were full of kids running around from house to house to park to shop to tree to trains to busses to school to tennis court to basketball court to skate park etc.

Urban areas where I grew up tended to be kind of concrete filled jungles. Similar facilities but nowhere near as exercise encouraging.

Now we live in a country where suburbs lack footpaths and there isn't much to do locally. We're considering moving back to another suburb in a nearby city that was urban and apartment filled but at least had a local mall, parks and rec centre that was extremely popular and well utilised.