I don't think most people buy locks for that reason, they buy them because they think the lock is secure enough so that only serious criminals will do anything,

I don't think most people buy locks for that reason, they buy them because they think the lock is secure enough so that only serious criminals will do anything, and then they hope those criminals don't show up. Besides, a lot of locks are so easy to pick that you might as well do it instead of making a lot of noise forcing it open.