They have two daughters, Mae and Helen, ages 3 and 6.
Erin reveals that the girls are sweet, but only when her husband is around.
They don’t like it to have just one of us."

The couple theorizes that they behave this way for multiple reasons.
Unfortunately, their jobs also requires solo travel.
So, one parent leaving upsets the balance and causes the girls to act up.

TheNapiers do live quite a lavish lifestyle, so they are not limited in coming up with solutions.