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One of the potential problems with 5G is as more and more people start using it then it too will become congested. We were sold a turkey with the NBN, courtesy of Malcolm Turnbull and the Libs. Fibre to the premises (the original intention) was a winner but switching to using the copper cable network (cost saving!) was never going to be a good idea. Amongst other issues is that when Telstra "sold" the copper network to NBN it did not include all the maps showing pit locations and cable details. Plus many of the pits had asbestos in them which NBN then had to remediate. Up to a couple of years ago they were still sending out contractors without knowing where pits and joints were located. Many of the joints were perfectly adequate when the phone system fed 48V DC down the line but as soon as you went to very low voltage /high data rates they just couldn't handle it.
It has cost NBN far more in trying to maintain an aging copper network, and push its use far beyond what it was ever intended to do, than if they had run in fibre everywhere as was originally intended.
And we won't mention the "technical ability" of some of the contractors......
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