Re: @jake - How was this missed? Daft question.
Actually the lock-making company Masterlock has for a very long time worked on the principle that 99% of the time the people they are aiming to defeat are in fact quite stunningly stupid, and unable to watch YouTube videos on how to pick locks (or, in the case of one especially crap series of Masterlock padlocks, unable to buy a specially designed defeat device).
Padlocks which are nigh-on unpickable do exist; disc detainer locks such as those made by Abloy are well known for being extremely difficult to break, cut, destroy or pick and they are not much more expensive than truly bad designs of lock. It is just that most of the time, a crap padlock will defeat a twit of a thief.