» Sat Nov 17, 2012 4:51 pm
Well, in real life you become a little more good at negotiating every time you talk to people and you try to persuade them, even if you don't notice it. You learn from your mistakes and get better. So it makes sense to level up speech even if you're not doing it on purpose.
About the lockpicks, well, nobody forces you to open locked chests... but since you're an adventurer in a fictional fantasy world, and everybody knows fictional fantasy worlds are full of locked chests, well, you really can't help but open all those locked chests if you want to pur your little hands on the goods inside them.
In Morrowind you could use magic to open locks, but that made lockpicking completely useless in the long run.