I’ve an (unusually affordable) opportunity to go away for a week related to an interest / hobby that I have. I have a 12, almost 13 yo. Lives with me most of the week and with dad couple of nights- sometimes 3 - each week. Flexible arrangement to suit what child wants. Good relationship with ex. I can’t take child with me as event not suitable (v similar to a conference with lots of lectures/ talks and will only be adults.) Have never left child for this length of time before. Would involve 15 hours travel - to the States from UK. Can’t decide if I should do it. Partly because it’s so far away, as well as because of the time away. Ex says no problem and to go for it. Suspect child will say they’d rather I didn’t. Any thoughts?