blue shirt,
your comparison is totally off. When a father sends his daughter to sem or sleep-away camp he is still in control because he chooses which camp or sem to send to and is therefore deciding who will be responsible for his daughter and keep an eye on her. He is delegating that control to someone he trusts. With sherut le’umi you don’t get those choices. A secular (possibly anti-religious) person will be making the decisions of how, where and with whom she spends her day. And there is absolutely nothing the father can do about it.