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I just airdropped 130 photos from my phone to my coach and I was sure it would take forever. The preparing stage on my phone took maybe 10 seconds, and the actual transfer took what looked like 2 seconds. I couldn't believe it.

Yes, it turns out computers are extremely fast when we're not doing backflips through networks and servers all over the country to do simple tasks.

I've used it multiple times while hiking and outside normal cell phone tower range. Need to transfer 500mb of images and videos? easy.

Another use case is to share pictures with people you just met / don't know without giving them your phone number.

I know there are better ways to transfer stuff. I am just saying that a majority of people don't tend to use them regardless of how easy/compatibles alternatives are.

They naturally choose to transfer stuff from the same app that they are using to communicate with others.

Not everything needs to be tailored only to the most trivial use case.