My son used to take amounts of money from me in his teens. It was part of some very unacceptable adolescent behaviour from him which worried his father and I greatly.
One day the cleaner's money (in a sealed envelaope with her name on it) disappeared and I accused him of taking it. To my great embarrassment he denied taking it and I found I had thrown it into the recycling myself. He seemed to stop taking cash after this horrible incident.
I think that taking money is not uncommon. It isn't good but it isn't the worst thing to happen if it can be dealt with.
I would advise mentioning the issue. Don't bury it and say nothing or the child might do it again. The theft might be related to some bigger issue like drugs or depression and this needs to be uncovered. If it is theft for 'stuff' and extra pocket money this needs to be addressed too as a known thief is unemployable and your GC needs to know this.
When Is News Not Really 'News'?
When a political leader lies on their CV - can you trust them?

