Parents have full control and role for their respective children, that is the essence of the problem.
If that happened to me personally, of course I would integrate it personally first, of course by asking carefully, where do you know about gambling, from whom and how could he carry out this theft, even though he only took my money, what is clear is that I will not immediately judge. I will communicate carefully first.

Whatever our children do, it is our full responsibility, especially if they are involved in gambling, my principle is that they steal, of course there is a reason, we have to be serious in dealing with a cool head and hope we can bring him to the right path, no more stealing and gambling.