Of course you can bring your children, we love them!!
Unless your plus one was indicated on the invitation, no. We are happy you would love to bring someone to celebrate our day, but we are trying to keep our wedding small and intimate.
Wear something cute and comfortable. No need to wear a tie and jacket (unless that’s how you’re comfortable) it's hot in SC! Sun dresses, dress pants, khakis and nice shirts are all appropriate.