Re: I've heard of a story of FTTH in Turkey
I'm not sure of the relevance of the comparison.
Broadband speed has a lot to do with the age of the local infrastructure, particularly in a property but also in the street. In many OECD countries cabling in the house to the next exchange is still copper because it's expensive to rip it out and replace. In many developing economies the infrastructure, especially between exchange and building will be newer, eg. fibre or coax, meaning faster broadband from the word go.
Yes, the UK dragged its feet over upgrade the network and particularly fluffed privatisation of both BT and Cable & Wireless but other countries didn't do that much better. But I think the most important aspect is that you're talking about an unlicensed connection. What redress does the customer have if a flunky decides the connection has to go?