Inquiries about wills increase in the summer as families plan vacations. (Of course, if you really fear something happening then you probably should go on a safer vacation, or stay at home.) For most people, this is simply a useful excuse to stop putting off the important responsibility of what we call "estate" planning, or as I like to say, family planning. However, a family traveling together does experience a higher (though still small) risk of simultaneous death of both parents. Should this type of tragedy occur without proper planning for guardianship, it could have disastrous consequences for the children, far beyond the terrible bereavement.