You're not in the US, so why did you bring up Google Fiber? Also if you're not in the US why are you talking about AT&T being forced to take away your ADSL?

Also the poster you replied to specifically said ADSL1 which has been superceded more than a decade ago by ADSL2, ADSL2+ and VDSL. These aren't fibre technologies and in most countries are sold at the same price.

Then you're likely in a very different situation. A condensed version of the US situation is that telcos here were incentivised through subsidies to upgrade and update the networking infrastructure to deliver more speeds and bandwidth to existing customers as well as connection to more rural customers. By and large, the telcos did not do that in spite of receiving the money.