Not capable of playing nicely with his younger siblings.
Only has 3 friends, one of whom lives too far away, one of whom is on holiday and the last one is not allowed friends round and is often grounded.
Too old to be taken to the park etc
Too immature to want to go out by himself.
Owing to a late start to the holidays round here, we are only on day 5 and I am already getting very stressed by his behaviour.
Any ideas?