Oct 16, 2017. Grandparents aren't legally required to carry consent for a trip with the grandkids, unless they leave the country. They should carry consent. That’s according to a new survey by Virtuoso, a travel agency network specializing in luxury travel which asked respondents to name their fantasy trips and bucket list destinations. is the family v. Multigenerational travel, one of the quickest growing travel trends, gives families a. of…