Apparently, on the one hand we evolved (without fire) but then it was critical for our alleged evolving…http://www.abc.net.au/news/2017-06-10/why-are-humans-attracted-to-fire/8592436
In as much as we have gone from generation to generation losing genetic information (& many practises) along the way, we still need warmth when it is cold & yes we can get used to things that are common place. Third worlders or those more prone to poverty & less industry or technology but just as intelligent are going to be more fascinated with first world stuff & vice versa & we still burn a lot of coal or gas to stay warm…we are in fact just the same then as we are now as are apes & horses with variations along the way.
It is hard to get to reality with so much advertised science shelved at just the right height for our perusal. Without a critical mind to asses & question things you really can get taken for a ride.