Exhaust systems with noises – Is there a deeper sense to hide?

Hello together, actually I see my topic here as “offtopic”, but I don’t find a suitable forum area for this (if there is such an area, please move it. Thanks!). Maybe I’m not so wrong here, because it’s about vehicle technology. I live in the center of a larger city and notice that in recent times extremely many vehicles drive around, whose exhausts give real “fur noises”. That also seems to increase more and more. Can someone explain to me why this is good? (I would be very embarrassed if my car did this.) Is this just a new “tuning trend” with only the noise at stake, or does it actually have a “lower technical sense”? I suspect that some sense has to be behind it, because some vehicles seem to have already started to do so. I noticed this especially with newly-acting small cars (e.g. minis). Can anyone tell me more about it?