Isn't it the same with airtags? Your iphone will forward data about other people's airtags as long as you have upgraded to the latest ios. You can opt-out, but you need to know about it first. Same deal I think with sidewalk.

You’re right, it is.

I think it comes down to trust and a track record of commitment to privacy.

Also IMO apple handled the PR for airtags very well.

I don't own an Amazon smart device and I don't think I ever will so I cannot comment on whether there is actually a need for a feature like Sidewalk.

Find My is also opt-out instead of opt-in

The funny thing is - if Apple made Find My opt-in - most users would chose not to use their device for Find My, though it benefits them all and hardly has a downside.

The sheer fact of asking the user to opt-in automatically decreases opt-in rate a lot (like a LOT), even if that tech is super good. It is way easier to dismiss a dialog than to think what it even does.