The biggest thing preventing me from using 4G more has nothing to do with speed or coverage. It's the caps and pricing on bandwidth consumption. I doubt 5G is going to change that.
Looking only at capacity, it will definitely be cheaper to provide unlimited plans but even if that was the only factor, there isn't much of an incentive for carriers to change how they charge for bandwidth.
In all likelihood prices will go up as 5G requires a massive infrastructure deployment of very expensive hardware, spectrum licensing, and they'll have to pay to transmit and receive that data to the internet. All of those additional costs will be passed on to customers.
Even if it wasn't expensive to deploy, carrier customers pay for value provided. 5G will be in some way better, so more expensive. In the same way we use pay insane roaming rates until EU ruled they can't stay - suddenly carriers advertise how cheap the roaming is with them and how they're the first ones to offer it in the country...
The real issue is coverage, not highest-available speed. It doesn't matter if Verizon puts up a tower that lets you download 10GB per second if you live in an area that Verizon doesn't care about servicing.
People can already steam music and Netflix (or whatever) and be happy with it. You don't need 4k revolution (or lossless music) on your tablet. If you cared that much about quality, you'd watch $whatever on an actual monitor (which, given our technology, is EITHER easily mobile OR better in 4k). As such, "people entertain themselves" doesn't justify 5G, just better 4G coverage.