I can see the use of the euphemism because it’s certainly not the child’s fault. But this guy isn’t a child any more, JFK was a horndog, and I’d be willing to bet the family’s been paying this guy and/or his mother to keep thimgs quiet. So as far as I can see, no need for anyone to try to gussy up the situation.
I also wonder if the Toons could be responsible for this, trying to get back at the Kennedys for their endorsement of Barry.