Unfortunately it becomes Dave in the US ![Sad :(](https://www.talk.uk-yankee.com/Smileys/classic/sad.gif)
It often becomes Davey here in the UK, though.
It probably wouldn't matter what we named our kids, they would have some weird nickname in a few years time anyway. Everyone in this village does, even me! DH is Munchie, and I am Munchie's Lass or Mrs. Munch, and then DH has friends called Armit, Stoney, Hilda (a man!), G, Wilkie, Hoggy, Lockie, and there's even a lady here that the folks call Bacardi Breezer!
![Tongue :P](https://www.talk.uk-yankee.com/Smileys/classic/tongue.gif)
And whatever the nickname is, it just sticks. Besides his mother (and my parents and friends) I am the only one who calls DH by his given name (which is Adrian, the best name ever, IMO!) Even his superiors at work and his former teachers call him Munchie.