By the way, you dont need to pick any locks whilst in Aleroth
There's quite a bit to lockpick in Aleroth. There are a number of locked houses and rooms. True there are keys, but that's what role playing is about, being what you want to be. And there are numerous locked chests and such in the Catacombs.
Mind you, I have no idea what level Lockpick you need for any of these places...