I have ADHD and live in an apartment <1000sqft and have lost my keys moments after finding them, but before I made it out the door. My second most frequently used command with my smart home setup is "Where's my phone?". I ordered 4 air tags. As to the e-waste concern, I'm trusting Apple's recycling program to handle them for me once they're no longer in service. It's admittedly not ideal for the environment, but I think it's better than the companies that sell disposable commercial trackers that are intended to never be recovered.
That might make you the only person to have never misplaced your keys. It's not exactly uncommon. In the above scenario, finding of an umbrella prevents waste as otherwise you need a new one.
Totally yeah, no car though. I walk in to a shop and I'm already tagged. I walk in to the streets, I'm tagged. There's no hiding from surveillance. But now to allow a tag report back where your X is located is ridiculous.
Why you want to submit to a heat map of your objects, and what you do with them, I don't know. Call me cynical. I pity the people who feel its a fantastic toy when normally it's the same people criticizing about X FANG company thing. Yet they go and buy the recent crud they release. Talk about hypocritical.