Hi. Son is 14 and has just started 9th grade this September. I'm not from the UK if that matters. He became good friends with a girl (15) from his class over the summer (met on their class' WhatsApp group which was created right after high school admissions were over in July). Around the time high school had just started he meets and becomes friends with this guy, 18 - 12th grade, who is also his classmate's cousin. They all go to the same high school. This guy turns 19 on 22 November (yeah, he's old for a 12th grader, apparently his mom didn't want to send him to kindergarten until the year he turned 5, so he started 1st grade the year he turned 8), and has invited my son and obviously his cousin to his birthday party, which will be held on the 23rd out of town at his family's "weekend home" (in a place called Snagov, you can Google it, it's around a lake and stuff, about ~40 km away from where we live in the city). Son really wants to go but I don't feel super comfortable with the idea. What would you do?