I guess someone could do that, but I would think that anyone who is that capable with locks would instead simply pick or bump the lock, no key needed. I don't think any automotive style door locks are much of a challenge to anyone who is good at picking locks.
It's really shocking how poor damn near every lock sold actually is. Pad locks, door hardware, all of it. There's only a few decent padlocks on the market and truly secure door hardware/locks is ridiculously priced. Not much point in using quality locks though, since what they are secured to or installed in is usually easily destroyed by a single kick from a 200 lb man. Just make it more secure than your neighbor's stuff is the goal.
