Apparently, none of the boys did and my kids came home - reeking pretty good. Well, I'm not sure about 'gang showers' as such.but I know that I had to go up to my boys school and insist that they be given time to take a shower after PE. Won't stop me eeballing or using the showers. I have only seen a few shower or freeball.
Most of the guys in the locker room do not freeball. Maybe that's why most of the guys I have seen coming and going do so in their workout clothes. However it is the first gym I have belonged to that has a 'gang shower'. It's a small strip mall street front facility and pretty cheap.$13 a month.