My fiancé and I as well as our families have mutually agreed that we will have a 16 years old and older cutoff for our wedding reception. We do have a couple of close family that have a few children with only one being 16 years old and the rest are younger and therefore won't be invited to our wedding reception. How do we word this on our envelopes the correct way without offending? For example: Mr. And Mrs. Smith and Matt Smith? Then just not putting the younger kids names on the envelope? Would it be more appropriate to just not invite those children at all even though they are older than 16?