"After seeing your tagline—"Thank God I'm an atheist"—I see little need for you to be worried about your sister. She's no better or worse off than you are."
I'm not so sure. Atheism (actually I consider myself to be agnostic) does not cause you ANY problems in this world-- except by the hand of non-atheists.
JW's on the other hand-- I am gathering that a number of "this-world" complications are quite possible.
I am concerned about this world, right now.
Not in this world, no, but if you are willing to risk the next world, that is up to you.
Yes, I figured you were. That's why I answered as I did.
You and your sister are in a car, stalled on a railroad crossing. There's a train coming down the tracks. But, you're wondering if you should be concerned that she hangs out with the wrong crowd.