There are plenty of times when you have to trust someone(s) else with your belongings, sometimes for a very long time - say, airline baggage, bus luggage compartment, hotel left luggage, or gym lockers - and it's useful to have a tracker (ideally a more secure one, e.g. AirTag) in case anything goes wrong.
And even if you're the type of person who never lets their bags leave their sight, nobody is immune to their keys slipping out of their pocket in a taxi.
I'm arguing the tradeoff of possible convenience isn't worth it.
Tile is owned by Life360. The original article talks about Life360 selling your data to advertisers. Let's look at what the Tile app wants to collect from you: photos and videos, location, app activity, messages, personal info. They say 'no data is shared with third parties'. Does that include the parent company Life360 that does sell data with third parties?
And even if you're the type of person who never lets their bags leave their sight, nobody is immune to their keys slipping out of their pocket in a taxi.