Jockey up or down

I have been noticing that many caravans are sitting on site with the jockey wheel raised, which to me is totally wrong. I have been caravanning for 25 years now and never really noticed this before, but am very surprised. Surley the way to park up is remove the caravan from the car using the jockey wheel, then when the car is clear level up front to back with the jockey wheel and then lower the front stabalisers to touch, followed by the rear. Finally check level and wind the stabalisers to give some tension. At this point I would clarify, they are stabalisers, not jacks.

The result is that the caravan has 5 feet on the floor. Also, by default most caravan designs have the seating/lounge area at the front, thus besides the caravan weight there is 4 adults @ say 12 stone = 48 stone of weight at the front. Better 3 load bearing positions at the front rather than 2.

Can anyone enlighten me why they should raise the jockey wheel clear ?