We're including the following card inserts with our invitations to our 20th wedding anniversary party: "Wine, Champagne & Non-Alcoholic Punch Will be Served, but you may bring your own bottle or drinks in addition if you would like"
We will be inviting a few people who are 19 and 20 years old so my question is, is it ok to add to the bottom of the card insert in small font: "You must be 21 to drink"?