Driving ranges, has the clientele shifted?

I think the clientele changed a while back. About 10 years ago, one of the old chaps went to the range to warm up early one morning, and there was a young couple having sex in there

They were definitely not worried about the golf, but were just there for a mess about. Not sure if they were first timers, but doubt they were there for the long haul. They were under no supervision.
Was she using a Vardon grip?
 
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