Wow I hope the rest of your stuff electronic and otherwise had the same good fortune!100% true.
That being said, during all the time I have had a NAS with redundancy (over a decade), I have not needed any backups of the NASes nor have I lost any data. This includes the time when we were hit by Hurricane Sandy and lost power for over a week. Throughout all this time, redundancy to protect against failed drives have been sufficient.
Two questions, do you use an UPS (if so, which one?) and which NAS do you have and what software version are you using? I'm curious since you said it defaults to afp.
I find storage to be certain important and most people throw up their hands in frustration and end up with 5 USB drives half of which are SSDs and are worthless.
I love helping out individually but I wonder how to scale it maybe write a quick we all to walk people thru options based on inputs. What do people here think? Is there any interest? Or am I solving a problem no one really cares about?