I don't buy this reasoning. Yes, if someone really wanted to get in, they could probably learn to pick locks. But that doesn't mean locks are useless - now we r

I don't buy this reasoning. Yes, if someone really wanted to get in, they could probably learn to pick locks. But that doesn't mean locks are useless - now we reduced the pool of potential criminals to people who 1) know to pick locks 2) have been hanging around the area enough to know when the neighbors are away and unlikely to notice anything suspicious while a stranger is picking the locks 3) take greater risks. This is a significant improvement from anybody who saw that the car wasn't parked and decided to waltz in.