You know what I just realised…
Harry Potter and the Philosophers Stone:
Draco: You’ll soon find out that some wizarding families are much better than others, Potter. You don’t want to go making friends with the wrong sort. I can help you there
Harry: I think I can tell who the wrong sort are for myself thanks
Harry Potter and the Cursed Child:
Rose: I’m a Granger-Weasley, you’re a Potter - everyone will want to be friends with us,we’ve got the pick of anyone we want
(LATER)
Rose: Yes, well we should probably sit somewhere else. Come on, Albus
Albus: No. I’m okay you go on
Rose: Albus, I won’t wait
Albus: And I wouldn’t expect you to. But i’m staying here
After talking about their family names - Rose Granger Weasley deems Scorpius the wrong sort of person to be hanging out with and leaves.
Albus chooses Scorpius despite him not being the likely choice. Even his dad doesn’t particularly like his association with a Malfoy but it’s not the family name Albus cares about, just like young Harry.
Its a direct parallel of Harry and Draco’s first meeting in reverse.
Albus can tell who the wrong sort are for himself thanks