People are talking about 5G from a consumer perspective here, which is fine, but I'm pretty sure the real benefits will first be seen in industrial manufacturing and autonomous vehicles. Perhaps gaming as well. The latency is a big factor.
So yes, you can already watch netflix on your phone, but not every technological step forward is about your individual entertainment :)
For reference, just look at what Ericsson is doing: https://www.ericsson.com/en/5g/what-is-5g