Based on the data that we have found, it's a bit difficult to just say that it is coercive control only. There are different elements to crimes that sons are committing. Some of them are due to mental illness.
The dynamics with older adults are.... Because of the love they have for their children, the child being the perpetrator makes it even more difficult for them to come forward to report, so while it could, in fact, be coercive control, it is not always coercive control.
When it comes to family violence, there seems to be an equal amount of abuse coming from extended families and children. When it comes to homicide, it's more prevalent among the sons, but when it comes to general abuse, it is the extended family that is perpetrating it. In fact, the last data I saw showed, I think, that it was almost equivalent, 35% and 35% daughters and sons, when it came to abuse and not just homicide.