So what, you can't swing a sword because you have no perks. Stop sharing only the side of story that advantages you and have a look at the leveling system in it's entirety.
Hahahaha, wow, now if this isn't a case of the pot calling the refridgerator black.
As to OP. I agree that Lockpicking needs a revamp. Same with Speechcraft. And other such skills right now that see little to no perk placement because it's unnecessary. TES games are supposed to be about choices. It's a Life sim. And also Ji Soo, you asked why should there be alternative means to opening locks than lockpicking, which leads me to believe you're in the "lockpicking is available, if you dont wanna pick locks/arent RPing a thief type then you don't need the chest" camp. Well to your why, like I said, Skyrim is a Life sim. And in Real Life I sure as hell can't pick a lock, but I know for a fact that I can kick down a door or bash open a padlock with a sledgehammer. Hell, most locksmiths these day's cant even pick a lock, they have special machines that do it.