This is a good analysis, and so many people, indeed, fail to take many things into account when they make "comparisons" such as this. When I was a child, we had no clothes dryer and everything had to be hung on the clothesline outside. In fact, that was one of my chores growing up. I remember the stir that ensued in the family when an uncle installed air-conditioning in his house in the 1970s. I didn't live in a place with air-conditioning until the late 1990s. Cars did not have air conditioners, either, when I was a child. If it was hot, one opened a window; if it was raining, one opened those little triangular "vent" windows (which was a separate pane of glass in the side windows). I also remember when cars only had AM radios, and it was a big deal when FM was available in the average automobile. So yeah, houses and cars were very different long ago!