Sometimes it's the policies; sometimes it's the dress code. Last time I was volunteering for security I mean hospitality duty, the dress code was a sport coat. I could have concealed dual MP5's. Nowadays, a lot of the churches I am attending are casual. My current church dress code for staff is literally a t-shirt, and if you don't want to look sloppy, it's not going to be too baggy. Not sure how to conceal well in that uniform especially in a role that involves the occasional hug. Moral: good dress codes can be both classy and tactical.