I remember in high school one of the main reasons we went to church on Wednesday nights was for the boys.  It was a social activity and the parents trusted the people you are with.  So many times - it was "mom i am going with the girls to so and so's house"  We would go over to someone's house, end up partying and hooking up-- and the parents never thought twice about it-- it was a church activity after all!   We had soooo much fun back then!  So, church often leads to those types of activities.