While there’s definitely some truth to your point, I also know the vast majority of folks who own a truck that I know use it to pull a trailer regularly (as in multiple times a month). Renting would be an unrealistic hassle for them.
You can pull trailers with cars, provided they have enough torque. When I was a kid, my dad pulled our pop-up trailer with a 1974 Pontiac Ventura (GM 5.7L V8 engine). Just last month I regularly saw relatively large trailers being pulled by relatively small cars when I was in the UK.
I didn’t say that it wasn’t possible, for some trailers. Fifth wheels by the nature of their design will not be pulled with a car. Even something as “simple” as my dad’s ski boat wasn’t possible to be pulled behind anything but a decently beefy truck (dry weight was ~6k lbs).
Where and when I grew up, setups like this[0] were very commonly seen on the road all the time, so maybe my experience is a little different than some of you.
Agree, I used to own a ‘76 GMC car with the same motor. Thing was a tank, hit a 14pt buck doing 70mph dead on and was able to drive away from the accident with just a dented front end, but otherwise fine.