Oh, come on. Go install a Nest or Ring for a week and see how much you come to rely on it. "Do I need to answer the door or is it just girl scouts selling cookies?" "Do I have time for coffee or should I head home to grab the package?" You can chat with the folks at the door! You can say thank you to the Grubhub driver as they drop the meal. You can see what the neighbor's cats are doing on your doorstep in the middle of the night. You can point one into your backyard trivially and see if it's the rabbits eating your leeks.
I mean, no, you don't "need" this, just like you don't need a dishwasher. But don't pretend it's just about paranoia, it's a fun tool for the modern era.
(Conversely, the folks here arguing about the terrible abuses possible with third party access to this data about girl scouts and cats are the ones who seem maybe a little paranoid.)