said by silbaco:
In the US, the FCC is to blame for that. They have been poor at enforcing and creating regulations by letting companies perform suboptimally and failing to regulate business practices.
They also don't let telcos that deploy fiber abandon copper, they make them maintain both. That makes it cost prohibitive and something Google doesn't have to deal with.
AFAIK it is usually a state commission that requires the copper to be maintained. Some small (tiny compared to Verizon) phone companies have been allowed to replace their copper with fiber optics. The FCC should encourage fiber to premises being made available to over 90% of U.S. homes before the copper PSTN is allowed to be abandoned by the big boys including CenturyLink, FairPoint, and Frontier.