Same reason at this point as “Student Driver” bumper stickers - so you know it’s inexperienced and may behave weirdly, so maybe keep a bit more distance than usual or something.

So you don’t call the cops when you overtake them and see then eating a bowl of cereal, jerking it, while watching Flinstones.

That’s what I thought. I can only imagine idiots will see it and try fuck with it. Anyone else be like, “Okay… So just keep doing what I’m currently doing.”

It’s marketing, if anything.

My theory on Audi bringing out animated indicators was that they were quickly getting a damaging reputation of Audi drivers not using indicators; a reputation their competitor BMW is negatively married to. To prevent this, they appealed to making them unique and special, no one else had them, so the drivers would want to use them. Thus actively mitigating brand damage on BMW levels.