I'm trying to airdrop some files between my iPhone and my Mac Air (currently on 10.9.5) and my computer just won't show up. Why is this?

I'm trying to airdrop some files between my iPhone and my Mac Air (currently on 10.9.5) and my computer just won't show up. Why is this? - 1

Have you tried apple.com support communities. For what it's worth, I can never get airdrop to work reliably either.

"Airdrop… Mac[Book] Air (currently on 10.9.5) and my computer just won't show up."

You can't use AirDrop. It requires OS X version 10.10 or later and MacBook Air Late 2010 or later.