It has been my experience that Catholics and Jews are not out to convert people the same way that Mormons do. Example- Catholics and Jews do not normally go on "missions".
Not that there's anything wrong with that. But don't be suprised if you go try to preach (under the guise of simply relief work) in a strictly Islamic land, then end up in jail. It goes both ways, and you have to respect the law in other lands.
There is no baptismal pool IN PCS per say. What happens is, the kids are offered the opportunity to attend Mormon services on Sundays. Even the kids on "investment" unit (the bad girls) were allowed to go, unless they were in isolation.
From there, the missionaries who run the services offer to meet with kids individually, for bible talk or counseling or I'm not really sure what. They would come in the evening, and the kid would be allowed to leave their unit to talk to the missionary for an hour or so.
I saw a good number of kids take them up on that offer.
The missionaries would also come and have BBQ and parties and stuff, but the only kids who could go were the ones who attended church.
After awhile, some of them would get baptised. This would be done off the grounds of PCS.
I attended the services a couple of times, out of curiosity (I had never been to church other than Catholic church, which they only had once a month). I was facinated at how the Mormon church provided the sacrament of communion to anyone who wanted it, because in Catholic church, you must first be baptised and study for awhile before you accept communion.
I told my therapist that I thought this was strange (he was a bishop or something in the Mormon church), and he agreed, and said that they should not be passing out communion like that. But apparantely, it continued.
Really, I found the whole thing creepy, as my parents had been so certain that there was no religious affiliation at PCS, which was one of the reasons they sent me there.