If you address an invitation this way: "Mr. and Mrs. Smith and Family" ...is it safe to assume that Mr. and Mrs.  Smith will understand that all of their children are invited? I don't want to confuse anyone. Addressing invitations is harder than I thought it would be!
We are inviting a lot of families, and I find it easier to write "and family" rather than write out each child's name (especially when there are 3 or 4 children in the family). Is this the right way to address our invitations to big families?