

What you might deal with is heat soak if the fans can’t move enough air over the condenser core. But modern vehicles are immensely more efficient than even 10 year old vehicles.
You’re point?
They’re not designed to idle for extended periods, and doing so puts strain on the systems. that the cars are “more efficient” doesn’t change that.
the AC compressor isn’t a significant load, no. But it’ expects a certain engine RPM coming into it, and it’s designed at that. It’s significantly less when the engine is idling because that’s below it’s designed range. There’s a reason the manufacturers tell you not to idle your car for extended periods (mine says more than 10 minutes, my last one said 5.) and this is part of it.
the increase in RPM modern cars do isn’t for the AC system. it’s to keep the engine from stalling and running smoothly… the compressor is still not designed to operate at that RPM.
I feel like it’s weird to talk about kids learning hygiene or bathing or grooming at work is weird.
But super important to actually teach your kid- and id put this in that category.