Is there Age Limits on TT to stay at Current Parks or CG???

We typically stay in state parks, but I have a buddy we camp with sometimes that likes the fancier places, and he wanted to meet at a place that had age restrictions, and was anti pop up. At the time we had an 11 year old popup. I called them, and told them what I had, and they asked for a picture, I emailed one to them, and they said to come on, that they tried to keep ratty trailers out. It was ok, but not our type of place.