DH & I want to plan a lovely family holiday abroad - dc are 10 12 and 16. Problem is a) holidays are expensive and b) ds12 in the past has struggled with being away from home / new environment / different food etc. We are a blended family who get on well at home, but holidays seem to take DS way out of his comfort zone (we do things a bit differently to his DM's household). By day 5 of a 7 day holiday he has generally settled but it takes that long to coax him away from his screen and out of a general moodiness which makes the holiday somewhat miserable for everyone else. He's very active and I think needs to be kept busy so I've found a family activity holiday which I think will appeal but it's not cheap.
Is there any way of engaging with him to get him to see that he needs to be cheerful and kind and get involved while we're away so as not to ruin an expensive treat for himself and everyone else? Or is that too big an ask at this age?
The alternative is simply not going anywhere, but DH works so hard and could do with a proper break. (DS is his) and it feels unfair to not have a holiday because of one person's mood.