Earlier quoted context omitted.
But customers are already paying for 'unlimited internet' -- or for some amount of data up to a cap. You're suggesting that we should double charge the providers that the customers want to access, as well?
Telekom already does this for a very long time, at least in Germany. see for example https://news.ycombinator.com/item?id=10645577
After years and years of appalling DSL speeds (think But, the subsidies were only for connections up to the local relays, not for bring glass fiber to the local customers. So once the scramble to the relays was finished, nothing else was done.
Two years down the line, slowly, you can start paying (1500 euros) for a connection to your door that should come in the coming months. And the breath-taking connection speed of 100 Mbits symmetric. Which, granted, is a good improvement for casual browsing, but not quite good enough for businesses.