I'm surprised so few have encountered site escorts. I'd say about a third of the parks we've visited over the years have them. Some do it to protect their property; others do it just to be helpful....or both. Frankly, my wife and I do better backing into a site when we're left alone, and we prefer that.
At one park the guy led us to the site, then said, "I'll be glad to help you, but if you and your wife have your own system for backing in, I'll leave you alone." We thanked him profusely and politely sent him on his way. I guess it never occurred to us to offer him a tip.
2013 Surveyor SP220
2010 Silverado LT 5.3 V8
The world is a great book, of which those who never stir from home
read only a page. - St. Augustine