This is simplistic, as it omits the fact that the "Aquafina" brand is municipal source water put through filtering and the "reverse osmosis" process to separate the crud in the piping.

You can do that yourself, of course. But, it is more complex and more expensive than just turning on a municipal water tap.

Pop, fruit juices (most are diluted with water), and even beer, have a similar ingredient, filtered and reverse osmosis treated municipal water.

This differs from a "spring water source", of course.