Buddy, big difference here: There are other kids living with him. This particular child, unlike Q, has several siblings that he has already hurt. He has hurt the cat. He has signs of antisocial issues and probably has Reactive Attachment Disorder (RAD). Also, not all developmentally disabled kids act out sexually. That is also untrue. My son has never done that, in spite of being abused by his older brother for a few years.
My kids had to see a special pediatrician who specialized in sexually abused children. They were the only kids she saw and she was not a mental health professional...she was on the medical side, and she was one who told us that usually a perp was perped on. She wasn't the only one who told us that, but she was one who did. Why did we see her? Because R. was 13 at the time he was found out, and my children were six years younger than him, the state wanted to press charges against him. This was not our idea; we had no say in it. But my younger kids had to go to see if there were signs of sexual abuse (physical signs). My daughter had been partly penetrated, which really upset us. We thought "molested" meant "on the surface." Anyway, this child WAS charged and found guilty of sexual assault of a minor, although he was also a minor. Most kids are never prosecuted like this; most of the time nobody finds out how far they have gone. They think, "He touched my child." They don't think "He had sex with my child." This child held a knife to both of my kids and made them do his bidding, all the time acting like he was the sweetest kid on earth...at least to adults. We did not realize the evil inside of him. Whether or not, he was a victim of his own sexual abuse, by then he was evil...having sex with little kids, terrorizing them, killing animals, setting little fires that we never knew about until AFTER he left. Sonic and Jumper were so scared of him they didn't open up about the REAL extent of the abuse until he was gone at least six months and they had been in therapy that long. Fortunately, so far both of them, maybe due to early and intensive intervention, seem happy and healthy. But I don't think this would have happened if we would have let R. still be a part of our family. They would have felt betrayed, as if we hadn't protected them from him. It is very sad what R. must have gone through, but we couldn't let him destroy the other two kids because he had gone through a lot. He got TONS of good therapy in residential once he was gone...more intensive than anything we could have ever afforded and he still perped on other children who were there.
in my opinion, from my experience, if a child is acting out sexually, we the parents never know how bad it is...we want to think it is just a few times and just touching a little and our other kids will be ok. But we don't know. It is dangerous and in my opinion unfair for any parent to allow a sexual predator, even their own child, to live at home. Pity for the perp should not again in my opinion supersede the safety of the other kids. There is no reason why this child can't be helped in an Residential Treatment Center (RTC) rather than while living in the house. As long as he is there, even with elaborate safety measures, he is a threat. Even with cameras running 24/7, our ex-son perped on kids in his facility. He liked to use the bathroom stalls, where there aren't any cameras. Many kids told on him, unlike our kids at home, who are confused because this is their sibling and mom and dad love him too...
I share this horror we lived only to explain how bad it can be. It is up to each person what they do about a child who acts out sexually on the other kids. My point is, you never know how far it has gone or will go. So weigh your choices carefully.