Thinking on it, I think I’ve heard my 12 mini ring a couple of times, but always in the context of “What? Weird, why is that on?”
I had a custom ring tone on my first iPhone, and probably the Android after that. Since then, it’s never been worth the effort. I’m rarely in a situation where I need to hear my phone ring.
It's nice to identify callers if your pone rings a lot. Unknown callers get a different ring. It's also nice to be able to customize what you own. I know not everyone wants to customize but it's hard to argue that it not a nice feature to have when you want it. Imagine being able to have a custom start up chime for your car. Now imagine every other car is able to do it except for yours. Thats not very fun.
I had a custom ring tone on my first iPhone, and probably the Android after that. Since then, it’s never been worth the effort. I’m rarely in a situation where I need to hear my phone ring.