With the focus on Albus Severus, it's easy to forget that Harry and Ginny (and Hermione and Ron) had other kids. Harry also has James Jr., Albus' older brother, and Lily, Albus' younger sister. They're the ones named after Harry's parents, and Harry appears to have no conflict with them.
Huh. Must be nice to be James and Lily Jr.
Ron and Hermione have Rose and Hugo Granger-Weasley. Rose is friends with Albus for about four seconds—before he becomes unpopular—and she is the subject of Scorpius' crush. (For some reason Scorpius thinks she smells like bread.) She becomes Chaser on the Quidditch team…and is always chasing popularity. One reason Scorpius and Albus reverse the first timeline they create is because Rose doesn't exist within it.
Hugo's mentioned, like, once. We almost forgot about him, and that's without time travel erasing his existence.