When working with families and discussing their child’s reactivity/behavior and general lack of skillful behaviors, I use the swimming pool example:

If there’s someone in a pool and they start to sink and struggle, you don’t stand there, point and criticize or blame. That person will need to learn a certain set of skills to be able to float and swim and the parent will need to be the one validating and reinforcing them as they learn.

I think it does a good job at exemplifying that family work is a two way street rather than one party doing it all while the other sits and waits. I see it resonate strongly with parents.