My oldest is 17 level headed and sensible his sister is 11 and a bit wacky but fairly sensible. Previously I have organised a friend to stay over when I go away for the night. However I have an overnight Xmas party to go to and they have asked why I need to get a babysitter? They have said they are happy together. I always order them take out so they don’t need to cook and friends live 2 mins away. They are sensible kids and would have the dog with them too. Is it ok to leave them ?? They are not the party type they will just watch tv eat everything and play computer games?