so if im understanding your post, the wiring in your house must be at least 25 years old if it never went out to be upgraded, changed or anything of that sort.
First: I have not lived in my current house for 25 years.
Second: I live in a country where the wiring in houses usually does not have to be upgraded, changed or anything of that sort for decades. I don't know what is happening with the wiring where you live, but we have had 230V/50Hz for as long as most people remember, so there has been very little need to "upgrade" anything.
Third: If such an upgrade had to be done, it would be announced beforehand, so I don't need a UPS to protect myself against sudden unannounced wiring upgrades.
I used to live in the US for a few years, and I had power outages every couple of months there, so people had a UPS. Here, I don't have that problem, so I will not buy a Macbook Pro just to enjoy the advantage of having power when someone decides to secretly upgrade the wiring in my house for no reason whatsoever.