I’ve owned two cars with ventilated seats. In both, I never used the function more than twice because the primary result was less “oh, how refreshing” and more “did I wet myself?!”

On a hot day I once turned it on for a passenger without saying anything (it had been a few years of owning the car and I forgot the side effect). He had never been in my car before and didn’t know about the function. (I promise I wasn’t trying to prank him, I just forgot). Within a few minutes he asked me to pull over because he was worried he’d had an accident.

In short, I don’t recommend ventilated seats.