Second a lot of people has still FTTC even if it has FTTH, mostly because FTTC offers a speed that is enough for most people (100Mbit/s) and upgrading may have costs (the installation of the fiber is at the expense of the ISP, but if you need to make modifications, such as put a pipe from your house to the street in which they will put the fiber, it's at your expense). In some cases even if fiber is present it's difficult/not possible to get it into your house (for example you live in a condo and the other tenants doesn't want to spend money to make the modifications that are needed to pass the wires).
In any case they have started to switch off copper (since it costs money to maintain an infrastructure that has decades), so either way customers will be forced to move to fiber or 5G network in the upcoming years. In any case a fault on a copper line is likely not to be repaired...