I also have kids who are now growing up, but can't think of anything worse than noisy screaming kids on a late-night flight.
Or, even worse, a child just across the aisle who begins throwing up - just as my food arrives!!! Yes, it happened to me on Monday night! (I was starving and really looking forward to my chicken dinner too!)
Moving them (or us!) to the back of the plane, or even a trailer Tinx, sounds like a good idea!