I don't know where you live, but the central heating in my house has a fire in it. That's how the water heats up! And for more localized heating, the heat given

I don't know where you live, but the central heating in my house has a fire in it. That's how the water heats up! And for more localized heating, the heat given off by some kind of flame also seems to be commonly preferred to that from an electric "fire". Fires are also better for everyday domestic cooking, whether due to basic usability (in the case of a hob) or warm-up time (in the case of a grill or oven). Passing electricity through bits of metal until they heat up is fine, but I don't appear to be unique in my feeling that simply setting stuff aflame works better. So all in all, I don't see the humble fire going anywhere. (Lest you think I'm a stick-in-the-mud, do note that I fully approve of the use of electric light over candles.)