Today 2 skiers were killed and 8 others are missing in an avalanche in the Cascade Mountains near Seattle. They were skiing off piste. Not only were they foolish to ski off piste, but other people are forced to put their lives in danger to rescue them. I do hope the prince recovers, but people should use their common sense in situations like this.
As for critical care units, I think that different hospitals have different rules. In the critical care unit of our local hospital, all the rooms are private rooms with glass fronts. Family members are allowed to stay 24-hours a day if they wish. You are only asked to leave if they are working on the patient and then not always.