> I really wish cars had two different horn

I really wish cars didn't have horns. Or that horns would be louder inside than outside for drivers to "feel" it accordingly.

99% of the honks I hear are useless to prevent any incoming danger (too late, honking to say "hi", honking to express displeasure...)

I've used the horn once in the last 10 years, and I shouldn't have.

If you want to expand your mind, travel to south east Asia or India for a bit and see a different way of how billions of people live and drive every day.

Yep. I cannot speak for India but I lived in China for a few years. Honking is useless there as well.

It is used a lot, but without actual benefit IMHO.

Edit: perhaps less useless since drivers tend not to look before changing lane. That's another issue.

They're 12V contained electronics with a wire, e.g. adding a boat horn to your car is an hour install at most.

I've done it. I've got a little loud speaker that plays a soft awooga sound when I press a button, but it would be nice to have a factory option, or even a standard