...and my sister has been really struggling with him for some time. He is attending a normal secondary school (he received a scholarship), and is extremely clever. However, he is incapable of really understanding the impact of his actions on others, and is unable to think of anything except his own immediate desires, which essentially is either playing computer games on his PC or on his phone.
My sister tried to confiscate his phone, but he started to cut himself until she gave it back.
He has been refusing to go to school for some time, and is now refusing to go on an expensive holiday that she has booked, with them due to leave first thing tomorrow morning.
She's at her wits end, and really really struggling.
Does anyone have any relevant experience and can suggest a strategy to encourage him to go on the lovely holiday she has booked for her family?
Thank you very much.