Apple Air Tags: Missing the Point?

ChipDale wrote:

Do Apple Air Tags Attach to my iPhone and Other Devices 'such as Keys'? If so, I don't see how. Do Air Tags 'Attach' to ANY of my Devices?

Here is just one of many options:

Belkin Secure Holder with Strap for AirTag – White - Apple

There is always duct tape.

I keep one in my wallet but it's just tucked into it. No accessories were required.

There are around a hundred different products offered to attach AirTags:

https://www.amazon.com/s?k=airtag+holder&crid=1GWI623C2K57B&sprefix=airtag%2Caps%2C108&ref=nb_sb_ss_mvt-t11-ranker_3_6

As each user’s needs are different, I’m sure you can find one (or more) that fits your need.