Family Tension
Likely the reason the 2019 movie has the whole family at home is because another key relationship is removed. In the novel, Rachel’s parents really hate Louis, and at one point her father even physically attacks him. Some (but not all) of this is present in the 1989 movie, but it’s clear that the writers of the 2019 film felt this relationship was superfluous to the story. All we get is a withering look from Rachel’s dad at one point. Otherwise, this family tension is ignored.