Yes - check out "Living Car Free". But, be aware that it can get a bit interesting in there at times!

To answer your question: I was bike-dependent for 5 1/2 years in a small town in the Upper Midwest. Other household members opted for transit (which was poor) or walking. Sidewalks (for walking) and wide traffic lanes (for cycling) made it easy to get around, haul a trailer, and so on. The biggest issue was ice; we had to use cleated shoes and spiked tires in the winter.

My current location is a bit different. Roads are very narrow, there is little cycling infrastructure, things are more spread out, and my 9 mile one-way commute to work is not served by transit. Bike dependence would be more difficult (but not impossible) for an adult with grocery collection duties and a full-time job.