Originally Posted by Niara
So, you're happy to say then, that picking locks is not implied to be limited to just rogues in the 5e Phb? That, indeed, anyone of any race or class can, by the core rules, begin a character with that proficiency and equipment, perfectly legitimately?

Depends of your character. Like the moderator said, it's only if your characters has the option to pick an extra proficiency but Rogues have it regardless as it's part of their class. It even says that rogues can refine those skills.