7 year old girl watching "Family Guy"

I am driving to visit my friend who just had a baby & I am hoping the newborn is still downstairs sleeping so I can pick the cutie up & hold him. I walk into my friends home & unexpectedly everyone is wide awake, including the freshman in high school daughter & second grader. I'm a little puzzled as to why the second grader is up, considering it's a Tuesday & kids have school M-F but I proceed to sit down on the couch. What I happen to overlook is the show that's being watched. I become extremely uncomfortable when I hear from the screen talk about gay men having sex & a dog kissing a man romantically & how "Peter" just blew his hand off & is bleeding everywhere. I am so in shock that I am speechless. Family guy for a 7 year old, you've got to be joking. I ask the little girl if she wants to go do something & she is glued to the tv, watching filth language come out of this tv screen. Every other word is foul language, yet the freshman refuses to change it even after I made a comment about how horrible this show was for young kids. Keep in mind, I am not a mother but I do watch a set of twins who are 7 & they are in the " Mind Craft & Animal Farm" phase of their life. If I ever hear them watching games with cussing other than damn, I will make them change it. So witnessing this happen in front of me, I was extremely uncomfortable & more so saddened that the mom would set the same boundaries for her second grader as for her 9th grader. Finally after explaining to her how it corrupts the child mind, the older sister turned it off and we switched it over to "Brain Games." I shortly left, still on a short fuse from what happened. I would love to get feedback on what parents here think about shows like Family Guy, Futurama, & all around adult shows. What are your 7 year olds watching?