At our last camping experience, we were pulling into the CG and got out of truck to look over our site to choose where/how we wanted to place our camper.
The neighbors were passing and one of their kids spoke to DD. The whole family was together and asked if she could come play. Normally DD has a large role in setting up (she is my go-to backup person!), but we told her she could go.
We spoke to the parents briefly and could see the area they were going. She came back about 10 mins later while we were still setting up and said they asked if she could fish with them. So we stopped setting up again and got her pole and tackle box.
The kids played together between the sites and playground areas for several days.
Did it throw off our setup routine? Sure. Did we mind? Nope! As DW and I say, it's about *her* and what she wants to do to enjoy her stay.
Found out the neighbors are locals and visit often. We are also local (well, an hour), and we share many of the regular friends at the CG, so we'll be seeing them again. Maybe next time *I'll* be the one to take the kids fishing!
I am not saying the OP was right, wrong, or that my way is better or worse. It's simply an example of how a similar start ended in a very different way.
Mostly, this is the kind of responses we get when camping. Maybe where we camp and the people we meet have something to do with it? Regardless, we consider ourselves very fortunate to have met up with very friendly folks.
We usually do offer to help as a person arrives. Once. It's usually something like, "Welcome neighbor, if you need a hand or anything, just holler. We'll be just inside or out front" Unless they request help then, I go back to our site. Quite often I end up giving out a cold water when they are done and they stop over to visit later that day or in the trip.
I can see how my DD could attempt to model that behavior and not understand the nuances of staying out of someone's space...well, maybe when she was younger...and unintentionally cause a similar situation as the OP's ;)