There are several considerations when choosing a water hose.
First: Is it rated for Potable water? Now I know that many people have drank from a standard garden hose, myself included, with no harm, but The hose lies out in the sun, the water inside gets hot, AND CONTAMINATED with chemicals that leach out of the hose.. You turn on the faucet, and wait till the water runs cold THEN you drink fresh water,, the contaminated water having been expelled.
With RV's. you might just not wait that long.. So it's important to use a potable water hose (no harmful chemicals)
Next.. There are 3 kinds of hoses.. "Regular" "Flat" And "Pocket" (Expanding)
Flat hoses work just fine.. No problems. I have one and have used it many times.
Pocket hoses though... Here you might have a problem.
Imagine your pocket hose is 25' long, it's 20 foot to the faucet, So you hook up the hose to the faucet, shut off the quarter turn on the outlet end, pressurize, then hook to your RV and open the quarter turn, ALL is GOOD.
Then the park looses water pressure.. The hose "Contracts" AND... pulls the "ring" (the part you screw into) right off the RVs water inlet... OUCH. Not expensive parts wise, but a pain in the painful spot non the less.