Happy 7th Birthday Wishes and Messages. Turning seven is a lot of fun, so if your son or another family member will be turning seven soon, you should send them a birthday card with some nice words in it. Because of this, we thought it was important to put together this guide to 7th birthday messages and wishes. These cute and sweet greetings are just right for a seven-year-old child. So, feel free to change these birthday wishes and messages for a person’s seventh year. We’re sure they’...