50 shades darker

This really isn't a controversy but I just got back from seeing a sneak preview of 50 shades darker with a friend. There was a women , she brought her 3 sons with her. I'm just guessing at ages but the appeared to be around 12, 10 and 6. I'm not a prude by any means but this struck me as so odd !!! I would be so embarrassed to watch that movie with my mom and I'm 30 ☺️.