The limitation is not the bike, it's the rider
We Americans are so tuned into the hype that bombards us with myths regarding the 'correct' gear, clothes, components, etc etc etc.
Yes there is no doubt that having the perfect bike for every contingency is ideal. but we forget that millions of people around the world ride bicycles as there sole means of transportation. They do just fine using the same bike day in and day out putting many miles in on crappy roads and all kinds of whether.
We are so spoiled..........................................just sayin'