In the UK, though there may be joint custody, one parent retains "care and control". I am aware of one parent who has not been able to take his sons gliding. This despite the fact that both sons ad been gliding with him for some time before the divorce. He had to capitulate because he was reluctant to put any more stress on his realtionship with the mother of his children.
My ex was only too happy for me to involve my sprogs in dangerous sports including gliding and rock climbing. All I had to do was keep on paying the mortgage for her and her new husband.
