I wanted everyone else's take on this.
First, I'll say that the airtags have not been released. However, Apple has announced their "find my" network, which allows people to have accessories that can be found using the "find my" feature.
At first, I was really excited about this! I thought it would be an amazing way of keeping track of things if they were stolen.
However, I just saw a youtuber who said that if there is an unknown "find my" device hidden in your things, your iPhone will notify you of this. Doesn't this completely defeat the purpose of find my? A thief is going to simply throw the find my tag out the window when their iPhone alerts them that there's a find my tag nearby, making it completely useless!
The whole purpose of find my is that the thief doesn't know that the find my tag is traveling with the user! Apparently the feature can be turned off, but it'll be turned off on the iPhone that would be doing the alerting, not the iPhone that controls the tag. I did decide to do my own research, and I did find this claim supported by this article:
I understand that stalking is an issue, but by adding this feature they have basically defeated the usefullness of find my for retrieving stolen things. What does everyone think?