We've had threads on that in the past. Some people, I'm among them, find that it's a VERY bad idea to have all your travel documents in one place. Not only can you basically kill your travel plans if it gets lost or stolen but your identity can be stolen very easily on top of that.
If you put the travel docs of the entire family in one place the problem only gets compounded. At least let father and mother carry their documents separately.
Just so you don't complain nobody warned you.
Till