I’ve ended up seeing this image a few times over the last while and I thought it’s worth sharing. Having to be formal and saying vous just goes against my nature. I might say sir or madame from time to time in English but it’d be rare.
Hell the French even have a verb for it.
Tutoyer. to address (someone) using tu, to thou. (colloquial) to be familiar with, to be close to something.
Don’t make my mistake of asking someone if you can “te tuer” 🙂