I think the point being made in this thread is that we don't know what improvement it might bring. But making it available will probably spur a lot of innovators to create something amazing and useful that could definitely make your life better.
However, I mostly argue that the taxpayer cost doesn't justify the gains. It's expensive and most counties and cities have to foot the bill or heavily subsidize it. If the telecom company wants to foot the bill. Good on them. No arguement here. If the city has to, go fuck yourselves. Its diminishing returns to a ridiculous level.
Really we have no idea of the the doors it could happen. In the 90s many people thought the internet was a gimmick or a fad. Today the most successful companies are built on it. It's very likely the same will be true for 5G enabled technologies and companies.
5G is not a revolutionary tech when we already have wifi and 4G.