I live in a country that won't see 5G soon, if ever (that is, not in the US). My point is that the existing LTE networks are plenty fast for all intents and purposes. I don't always notice the difference even between 3G and 4G.

So, then, it comes naturally to ask what is the exact problem that 4G has but 5G aims to solve, besides all the marketing and change for its own sake. Especially that weird kind of 5G that can't go through your hand and has coverage area of a single tower smaller than that of a WiFi access point.