I live in American suburbia and that's how I live. I can walk or bike whenever I feel like it, drive if it suits me. I sometimes wonder what the average European assumes American suburbia to be. Endless tract homes? Such places do exist, true. But that is far from universal.
It is though, like, 90-95% of suburbia, and why the US has close to 100% of car commuters ( https://vis.csh.ac.at/citiesmoving/ ). Even small cities like Rennes (or even Clermont-Ferrand, which has objectively mediocre transit) have less car commuters than NYC, which is insane.
Of course you can walk. But can you walk to your workplace, your kid’s nursery, your local bakery/supermarket, your doctor, your dentist, the pharmacy?
> But that is far from universal
I mean even just perusing around a lot of metro areas on Google Maps its by far the norm. I know its by far the norm for just about every metro I've spent more than a week or two in.
Definitely not universal, no. And in some place the "norm" can be pretty different, even in somewhat surprising locales. But generally speaking? Yeah, pretty terrible experience for a lot of pedestrians and cyclists in US suburbia.
I mean, most places I've visited traveling around the US suburbia, bike lanes were practically non-existent, there was zero notable public transit at all, and sidewalks were usually an afterthought if they existed at all.
I'd be curious what metropolitan area you live in for this to be true! If you're not comfortable sharing for privacy reasons, that's all right. But it seems like this is the case in inner-ring suburbs in the Northeast megalopolis.