I blame parents first and then society. Parents set the example and if parents do not show respect to other people and their property then their offspring will probably follow the same pattern. Of coarse you can't tar all parents and their kids with the same brush but unfortunately it's true of a lot of familys these days....
Also I think it's part of the times we are living in. If you are from a Christian background like me then you know that it's all part of the signs of the times...
2 Timothy 3:16
3 But know this, that in the last days critical times hard to deal with will be here. 2 For men will be lovers of themselves, lovers of money, self-assuming, haughty, blasphemers, disobedient to parents, unthankful, disloyal, 3 having no natural affection, not open to any agreement, slanderers, without self-control, fierce, without love of goodness, 4 betrayers, headstrong, puffed up [with pride], lovers of pleasures rather than lovers of God, 5 having a form of godly devotion but proving false to its power