The point I think is that while most locks are really easy to pick relatively, the people that it's really easy to pick to, aren't the same people robbing your house.
The ones that sit and practice picking the locks are the ones that install them, or come out when you've misplaced your keys and get you in the house.
The robbers are mainly opportunists that wander around looking for open doors and windows, knock to see if you're home then try to force a way in.