Amazing. I didn’t know this. I don’t have kids, but if I did, I would not send them to boarding school even in the US, let alone out of the country. I’d rather have close relationships with them and do what I could for them at home.
My cousin (she and her husband, both dentists, own a thriving dental practice with 27 employees, including 5 other dentists) in Germany. They have 4 kids, and the kids lived at home, with a succession of live-in nannies to care for them and attended the top private schools nearby. For their "high school" years, they are being sent to a small, private boarding school in Ireland. Besides the academic program, and keeping the kids in a very protected environment, she is putting them in a milieu where they will be making connections for their lifetimes, both personal and business.
This school is very selective in who can attend and wants to encourage a broadly international student body (only 5 students from Germany can attend, for instance). It does have a legacy program, so siblings get preferential entry.
As to the social connections these kids are making, cousin's oldest son was just invited to a fancy ball at a castle in Luxembourg. He was the only one there who was not from nobility. I guess his personality and dance skills opened a few doors. The students regularly invite their class friends to vacation with them in some of the most exclusive places in Europe or at family manor homes.
Quite a difference from my life.
omni