The great thing about not being a Mormon (or, one must suppose, of any religious cult) is that one has the freedom to choose what one does.
Let's take two example.
Mr Jones decides that he will have a carnal relationship with his girlfriend.
That is the business of Mr Jones and his girlfriend. Nobody else. Nobody else is involved.
However, if Brother Jones decided that he will have a carnal relationship with his girlfriend, oh dear! Who are involved here?
There's Brother Jones and his girlfriend. The Elders Qurom President, the Bishop, plus his two councillors, the two Home Teachers of Brother Jones, and if she is from a different Ward, her Bishop and his two councillors, the girlfriend's Home Teachers, her Visiting Teachers, perhaps, then there is the Stake President and his two councillors. All will, in one way or another, become involved in investigating the fact that two adults decided to become involved in a carnal relationship, with perhaps disfellowship and/or excommunication as the end result. Then there's the PEC and the Ward Council Meeting, with all of the people who attend those meetings.
Crazy way to treat two adults, isn't it?