Why? I like to keep an eye on my dogs when we're away, and it's all done securely using HomeKit video. My iCloud is e2e encrypted and the camera doesn't upload anywhere besides there.
What's the invasive part? Not giving my dogs privacy when we're out of the home?
Approximately nobody was using everything x years ago. That's not really a measure of what's nice to have and what's not, it's a measure of how long the nice to have has been around.
Tons of people had cameras 20 years ago. It was 2006, not 1906. Besides, we've had pets for surveillance for hundreds of thousands of years. Literally nobody in history has thought "nah no need for security".
What a ridiculous way to try and be on a high horse.
I always wonder what the overlap of this economically is. If you can afford all this home surveillance gear aren't you already likely to live in a place that's comically safe? Why are in particular Americans with their gated communities full of soccer moms and Labradors putting cameras on their house as if they're living on a US military base?
We have cameras to watch our dogs and make sure they're not getting into trouble with each other, things in the house, the cats, etc. We're not worried about bad guys or our personal safety.