They lied a lot for a good few years saying "OMG fibre broadband!" When in reality is was still copper for the last mile so that "fibre" connection in reality was some ADSL variant and limited to 80/20mpbs.
Actual full fibre all the way from your home to the internet is I think still quite a way behind. Even in London (London! The capital city with high density) there are places where there are no full fibre options.
According to ThinkBroadband's tracking [1], the headline figures are 85.20% of premises are gigabit capable (FTTP/FTTH/Cable [DOCSIS]) with 71.86% being full fibre.
Only a few I know are on ftth. I guess I live in a fairly affluent area in Zone 3 which is lower density than average - zero flats etc, all just individual houses so perhaps not worth their effort rolling out
