I would even guess that for a large breach like the one T mobile had, most of their customers don’t know about it. And if they do the thing they care most about is trying to get their cash payment because “free money.”
I’m not saying that’s how it should be but that’s how it is. Companies make decisions every day that are bad for their customers and everyday unless the customers are majorly inconvenienced they simply don’t care. Or maybe I’m in a bad mood today and casting everything in a negative light. Or both.