Actually I don't know what will be the benefits for the user by using fastest internet. Because most of them sre going to use that fast internet to stream contents on Netflix or Youtube or going to spend time on social media.
Talking about a general human.

yes sure, if you talk for normal human. but It's a different story with the factory or company or some influencer. the simple thing why they need fastest internet is simplify and speed up their work. i give you some example, Youtubers need high speed conection for uploading video conten with 4K resolusion, can speed up scanning of objects such as license plates ( Smart Surveillance ) will help police and goverment for Traffic monitoring, and others benefits.
Even if its 5g still not enough, as more and more people are using internet telecom companies should upgrade thier internet to its highest capacity. So that no one will left behind. Were in 5g but everytime my son is on his online class he cant even see the people on other cameras.