3 adult kids, 2 with families and none has ever asked to borrow the RV although a couple have borrowed the old tent. Closest I can comment on this issue was several years ago. My middle daughter and SIL gave us a week of camping at a SP. I had some work thing come up so I couldn't use it the first day, but I could drive and set up the RV the day before and offered it to them to use for that first day and night.
Went over water maintenance (naval showers), holding tank capacities, electrical, etc.
When DW and I showed up the next day found that SIL had drained the FW and completely filled the gray tank after 1 "naval shower" so I had to take care of both and there were some other issues. I was really steamed. These are all minor things and are more an indictment of me - I do not do well loaning out my important stuff. They are all welcome to join us and they do.
Got back this afternoon from 8 great days of camping. 2 of the kids and families were here cooking out and enjoying the pool; son had mowed the yard for a father's day greeting. All is good.
2015 Shamrock 231KSS, Oyster shell
2016 Chev Silverado LT Z71 Ext. Cab, 4x4, 5.3L V/8
Reese Straight Line WDH, 2000W Honda Gen.
2 Old Town kayaks & 2 Boston Terriers - Zoey/Gonzo
Lar & Ruth
55 nights camping in 2015, 45 in 2016